Quality stainless steel cnc turning parts manufacturer and supplier

Quality stainless steel cnc turning parts manufacturer? Sheet metal fabrication stamping is a common way, stamping skills are generally divided into two categories, respectively, and forming process. The process is in the stamping process to make the stamping parts and billets along a certain contour line respectively, together with the quality of the sections of the stamping parts should also meet certain needs, these needs are the needs of the early customer choice. The forming process is to make the stamping blank in the condition of no damage to the attack of plastic deformation, and turn into the required shape of the finished product, together should also be satisfied with the scale of the process and other requirements. Discover extra information at stainless steel turned parts manufacturer.

Our tailor-made manufacturing services can meet your specific product design needs. Once your order is confirmed, we will conduct a manufacturing-oriented design review to confirm all aspects of your project in advance to achieve the shortest delivery time, the highest quality, and maximum value. So why not come to visit our facilities in person? We are ready to help you to bring the next product to the market, let us help you to succeed!

Long-term outdoor use of charging pile, wind, and rain, high temperature and cold, contact with oil and gasoline, in addition to mechanical properties and environmental protection requirements, but also to fully ensure the safety of human contact, so the material must meet the flame retardant, weather resistance, low-temperature resistance, oil resistance, insulation, aging resistance, and other stringent requirements. At present, the mainstream charging pile is polycarbonate PC resin, in addition to PC has good physical, chemical, and electrical properties, but also because PC has excellent anti-ultraviolet and anti-oxidation function, suitable for long-term outdoor use.

PEEK molding or injection molding, extrusion, blow molding, pressing, and so on. USES: It is a kind of engineering plastic with excellent comprehensive performance. The film can be flow-extended or directional, used as wire covering line, atomic energy engineering components, H or C class electrical insulation material, flexible printed circuit board, heat pump casing or frame, oil well coupling, valve, metal heat resistant or anti-corrosion coating, monofilaments, wrapping tape, Sieve, subway, mine, oil field, electrical industry, atomic energy engineering, chemical equipment and so on. Aerospace PEEK bolt manufacturer PEEK injection molding should pay attention to the uniformity of the mold heating distribution.

Sheet Metal Fabrication mainly includes cutting blanking, CNC bending, punching shear, stamping, round, riveting, welding, and other methods of technology. Can also be said to be a variety of equipment working principles and control methods. All sheet metal processing technology is based on the sheet metal engineers before the operation of the product drawings are carefully designed and specifications marked. Sheet Metal Fabrication as the name implies is to use sheet metal processing according to the demand to do need items. There are a computer case cabinet, TV backplane, car shell, air conditioner shell, terminal integrated case, charging pile box, and so on.

Bergek CNC – One-stop solution for Sheet Metal Fabrication & CNC Machining. Bergek is a professional manufacturer of customized sheet metal and CNC machining in Shenzhen. Our team is divided into two parts: fast CNC machining and sheet metal processing. The team has full-time engineers and equipment services. Generally, the lead time is 3-10 days. To ensure that your parts can be delivered on time every time. High reproducibility and interchangeability of the prototype; the materials can be customized, and can use a variety of metal and non-metal materials; the manufacturing process has nothing to do with the geometry of the prototype, which is superior in the processing of complex surfaces. Read additional info on https://www.bergekcnc.com/.

Universal tensile testing machine provider China

Din abrasion tester supplier by GesterInstruments? Universal strength tester by using different clamps, it can be widely used for determining tensile strength, elongation, tear force, adhesive force, tensile stress, peeling strength, shearing force, etc. of the completed products, semi-completed products or dumbbell-type specimens of various materials such as sole, tire, rubber tube, triangle adhesive tape, plastic cloth, plastic plate, metal, packaging film, Acrylic, FRP, ABS, EVA, PV etc. See extra information at din abrasion tester.

Gauge length and tension speed presettable; Able to set pre-tensile force; Many kinds of clamp are selectable according to requirements test standards, including pneumatic clamps. Textile fabric, such as bedsheets, clothes, etc., a lot of them will lose color after washing, some products fade seriously, even after washing many times, there will still be discolored. Test Preparation before Color Fastness to Washing. What test standards are there? Color fastness to washing is one of the common test items for textile dyeing fastness, which is mainly used to test the fastness of fabric clothing and home textile products after one or more times to simulate the dyeing after household washing and commercial washing. There are three common standard: AATCC 61, ISO 105 C06, GB/T 3921.

How to maintain the universal testing equipment? The part of the utm electronic universal test instrument is often wiped clean and kept clean. Please wipe with electroplating oil to prevent rust and light. Please add lubricating oil to the power screw and screw part to ensure the transmission is sensitive. the panel, please wipe with a dry cloth, to prevent water, so as not to damage IC electronic parts. Please fix all fixtures and fittings and wipe the anti-rust oil to prevent rust.

With several modes of operation (spray, alternating light and dark, revolution), can simulate the real climate state. Individual timing of each sample clamp may enable different sample test in a same tester and facilitate test monitor and reduce operation cost. 7-inch color touch screen, various test monitor models(animation, figure and chart), simply operate, directly and clear. 1000 hours of continuous operations. Industrial grade microcontroller with strong antijamming capability. Xenon arc light fastness tester: 12 working positions monitoring, can set and inquire the irradiation energy. Possess fault prompt functions and self-diagnostic function.

This bursting strength tester use pneumatic method, meet multinational standards and equipped with several changeable test clamp. The simple interface touching screen controller is easy and simple to handle. The specimen was clamped firmly by the pneumatic force which can also save effort. The test cover was made up of high-transparent glass with LED light inside which can observe the specimen easily. The Bursting Strength Testing Machine can induct the burst automatically which is much more sensitive and reliable. The bursting distension can go up to 75mm.

GESTER instruments is a textile testing equipment manufacturers, company which integrates research & devolepment, prodution and sales in one. So far, GESTER instruments owns two production factories and four sales teams for textile testing instruments, footwear testing equipments, children’s product tester and furniture tester. We have applied for dozens of patents from the State Intellectual Property Office. As one of the best textile testing equipment manufacturers with 20+ years experience, With GESTER instruments’s advanced design, excellent manufacturing technology and strict quality management, GESTER instruments has build the longterm cooperation relationship with tops of international testing institutes as SGS, Bureau Veritas, TUV, UL and Intertek, etc. We specialized in textile testing instruments. Read even more details on https://www.gesterinstruments.com/.

ASTM D4060 Taber Abrasion Testing: Taber rotary type abrasion tester is a specification that determines the “Abrasion Resistance of Organic Coatings by the Taber Abraser.” Although written for organic coatings, the same method applies to inorganic coatings. At the conclusion of testing the sample(s) are then re-weighed. The wear index is then calculated by taking the average mass loss per 1,000 cycles per section 12 of ASTM D4060. Assured Testing Services has multiple taber abrasion machines that meet the ASTM D4060 standard. One of our machines is shown with an exposed sample on this page.

Level switch manufacturer 2022

High quality level switch manufacturer? Ground interference refers to one of the two output ends of the radar level gauge (or compensation line), and its AC voltage to the ground is called the ground interference voltage. This disturbance is also known as longitudinal, in-line mode or in-line state disturbance. Generally speaking, the interference voltage to ground can reach several volts or even more than 100 volts. The above is the interference of the radar level gauge we discussed. When we install or use the radar level gauge, we can also determine whether your use environment will cause these interferences to the level gauge according to the above situation. If these conditions exist, anti-interference measures must be taken to ensure that the level gauge can serve you better. Read extra details at https://www.kaidi86.com/product.html.

Level Measurement Solutions for Deaerators: With proper level control and instrumentation, every part of the steam generation cycle can be managed for optimal efficiency. Deaerator Functions: The deaerator serves as an “open” type heat exchanger with its primary function being the removal of oxygen and other corrosive gases from the boiler feedwater. This is accomplished using steam, which can give up about 970 Btu per pound, to support the deaeration process as well as preheat boiler feedwater.

In the process of cement production, material level detection and material level alarm control play an important role from mining and crushing to storage and packing of finished cement. But because of the complex working conditions of cement plant, radar level meter has no small difficulty in measuring. Today, I would like to talk with you about specific difficulties and solutions. First cement plant material for measurement in the dust under the condition of particularly large, especially some pneumatic feed bin, involves the kinds of materials, material particle size is differ, dielectric constant is different also, such as broken limestone, raw meal, clinker, fly ash, coal, cement, the level of the bunker, it is very difficult to accurately measure Especially fly ash bin with low dielectric constant.

If the radar level meter is unreasonably selected, the interference echo cannot be handled well, and the reliability of the instrument will be reduced. Therefore, the following factors should be considered when selecting a radar level meter: Conductivity and dielectric constant of the measured medium. The measured medium is a conductive liquid or a liquid with a dielectric constant above 4. Generally, a common radar is selected. Liquids with small dielectric constants (dielectric constants below 2) and some conductive solids often use precision radars or guided wave radars due to the large amount of interference echoes.

The electromagnetic wave emitted during measurement can pass through the vacuum, no transmission medium is required, and the anti-interference ability is strong, and it is not affected by temperature, wind, water vapor, water mist, rain, etc. It can be used for liquid level measurement of almost all liquids, and can be continuously measured on-line unattended. Large measurement range, high precision, mature technology and stable performance.

As one of the most professional magnetic level indicators manufacturers in China,Guangdong Kaidi Energy Technology Co., Ltd. provides customized solutions for a range of industrial automation process applications,such as mechanical float level indicator.We specialized in radar level gauge, fork type level switch,etc. These were implemented successfully, and KAIDI magnetic level gauge manufacturers products,such as radar level meter, magnetic level indicators, can be used in many different industries such as food & beverage, water, energy, pharmaceutical etc. Read more info at https://www.kaidi86.com/. OEM Service-can be customized according to the application of customer,such as level gauge,level switch and level indicator.

The influence of dust accumulation on the transmitter head of the radar level meter, due to the large amount of dust in the working condition of the radar level meter, the dust is easy to adhere, and affected by the ambient temperature, the dust is wet and easy to agglomerate, and the dielectric constant will become larger and adhered The transmitter head and the wall of the bell mouth of the radar level meter affect the accuracy and stability of the radar measurement.

For the ultrasonic instrument that continuously measures the liquid level, when the temperature of the liquid to be measured changes greatly, the change of the propagation speed of the sound wave should be compensated. The connecting cable between the detector and the converter should take anti-electromagnetic interference measures. The structure of the ultrasonic level sensor should be determined according to the process requirements and on-site working conditions.

Automatic rain gauge manufacturer and supplier right now

Rainfall sensor factory right now? A radar rainfall sensor is a sensor that uses radar wave technology to detect rainfall. It can distinguish the types and intensity of rain, snow, and hail. Compared with the traditional mechanical rain gauge, the detection is more sensitive and fast, and there is no need to worry about the influence of the cover of leaves and other objects on the surface of the detector for rainfall detection, and no need for a heating device to prevent icing. There are no moving parts inside the product, which are maintenance-free, small in size, and low in energy consumption. Discover extra information at rain gauge.

The air quality sensor is part of the air conditioning system. Air quality sensor is also known as air pollution sensors can detect and monitor dust and particulate matter in the air around us. These sensors can be used inside to detect indoor air pollution and outside to monitor pollution in the environment. Rikasensor has many types of sensors to detect the air quality, for example PM2.5 dust sensor, Carbon Dioxide (CO2) Sensor, Ammonia ( NH3 ) Sensor, Sulfur Dioxide Sensor and etc. These sensors are small and provide data in near-real-time at low cost and using low amounts of power. Sensor-based measurement devices are becoming more popular as people are becoming aware of harmful pollution, smoke and dust, and the health impacts this has on individuals and the environment around us. The air quality sensor comes bundled with our weather station solution.

What is an anemometer/wind sensor? An anemometer is an instrument that measures the air velocity. The main applications of wind sensor are in the field of meteorology and industrial applications such as in wind turbine business or high-rise crane safety monitoring. Wind speed sensor & wind direction sensor are used for wind speed and direction measurement. For the measurement of wind speed and wind direction, several principles may be used, as described in the WMO ‘Guide to Meteorological Instruments and Methods of Observations.

As always, physical property, electrical input/output and package configuration are all important considerations when developing products to meet our customers’ needs. We are committed to provide users with high-quality products, effective technical support, timely delivery and advanced project solutions. Our professional sales team, high-quality product and good after-sales service have earned us good reputation among customers from home & abroad. Our products have been exported to 50+ countries and regions such as Indonesia, Vietnam, US, Germany, Italy, Spain, Denmark, South Korea,India and etc.. We sincerely wish to cooperate with friends all over the world! Rika Sensor is always endeavoring to be your close business partner! We are alert and responsive. We understand and anticipate all your needs. Rikasensor has been growing with you. Discover additional info on https://www.rikasensor.com/. Hunan Rika Electronic Tech Co.,Ltd is a privately held weather sensors and environmental sensor manufacturer and solution provider of environmental & weather monitoring for 10+ years.

Rain gauge is a meteorological instrument for determining the depth of precipitation (usually in mm) that occurs over a unit area (usually 1m2) and thus measuring rainfall amount. One millimetre of measured precipitation is the equivalent of one litre of rainfall per metre squared. We offer tipping bucket rain gauges, radar rain gauges, rain sensor switches and evaporation sensors, all of which are used in hydrometeorological monitoring and agriculture. Rainfall monitoring is very important in a wide range of fields like meteorology, hydrology, agriculture, forestry, field monitoring stations and other industries, which enable people to prepare in advance.

Automatic weather station (AWS), also called automated weather station, is an automated version of the traditional weather station, either to save human labour or to enable measurements from remote areas. An automated weather station is an automatic version of a traditional weather station. It can automatically transmit or record observations obtained from measuring instruments. They can be single-site or part of a weather network.

Stainless steel factory in China

Stainless steel sheet factory with Topsonstainless? Topson invites all our clients to realize their vision with our mission. We are proud to present ourselves as one of the leading and innovative metal fabricators who with effective collaboration, relationships, and tools. Customised metal works and stainless steel products(custom metal fabrication & stainless steel sheets manufacturers ) are everywhere. Stainless steel decorative sheets has many valuable properties which makes it suitable for diverse uses. It has high strength, corrosion resistant and excellent durability against chemicals and acids. Find even more information at stainless steel sheets manufacturers.

Foshan Topson Stainless Steel Co., Ltd., situated in C1-2,Building C,No.3,Xinglong Road 11,Guanglong Industrial Zone,Shizhou Community, Chencun Town, Shunde, Foshan City, Guangdong, China shunde foshan guangdong, is a professional Manufacturing Decoration Materials enterprise. We mainly run the business of decorative stainless steel sheet suppliers.The decorative stainless steel sheet suppliers series is one of the main products of Topson.Under the guidance of market, Topson constantly strives for innovation. decorative stainless steel sheet suppliers has reliable quality, stable performance, good design, and great practicality(decorative metal screen).

Custom stainless steel screen is very high, not easy to occur, so his service life is also very high. After all, stainless steel is one of the highest strength materials in the metal material of the building. In addition, the stainless steel screen does not produce corrosion, pixment, rust or wear, because stainless steel has good corrosion resistance, so it enables the structure The components are permanently maintaining the integrity of engineering design. It can meet the needs of architects and structural designers to maintain long-term durability.

Foshan Topson Stainless Steel Co., Ltd., a Manufacturing Decoration Materials enterprise, Specialized in manufacturing stainless steel railing and sales of decorative stainless steel sheets. decorative stainless steel sheet suppliers produced by Topson are very popular in the market. decorative stainless steel sheet suppliers are in line with stringent quality standards. The price is more favorable than other products in the industry and the cost performance is relatively high.

Stainless steel decorative sheets are always showed luxurious and amazing. It is mostly combined with several various finishes treatment, patterns treatment plus color coating. Normally, decorative sheets will be done with basic surface finish treatment first. Basic surface treatment are normally including mirror finish, No.4 satin finish, hairline finish and bead blasted finish. And bead blasted finish is normally done with mirror finish first to avoid any dirty left on the original 2B finish cold rolled stainless steel sheet. Pattern treatment will be the second. Normal pattern treatment is embossed and etched. Color coating and anti-fingerprint are normally the last. Find even more information at https://www.topsonstainless.com/.

Four, impact test. Impact test is similar to cup burst test, which is an important step to test the impact toughness of stainless steel sheets materials. Impact test is to impact the stainless steel sheets material through the external force of the equipment. In this process, the toughness of the material itself can be effectively released. The impact test has the characteristics of reliability and effectiveness. I believe that through the above four detection methods, we will know how to buy stainless steel sheets products to meet the requirements, in order to meet the needs of different applications.

Excellent aluminum cnc turning parts manufacturer manufacturer and supplier

Aluminum cnc turning parts manufacturer supplier right now? With the rapid development of industry, sheet metal processing can be used in industry can be seen everywhere in life, such as in automobiles, machinery factories, furniture, lamps, and lanterns, so widely used. But in addition to sheet metal processing, do we know how much hardware processing? What’s the difference between the two? Since many users don’t know this, Bergek will explain it in detail. Sheet metal introduction And sheet metal refers to the thickness of the plate processing skills, sheet metal processing, and hardware has a substantial difference, mainly shear, folding, bonding, and other production process. The hardware side naturally includes sheet metal and a variety of sheet metal parts. Read even more details on https://www.bergekcnc.com/aluminium-turned-parts.

Bergek is a world-class manufacturing service provider in Shenzhen. We got advanced equipment to provide all-around customized products for manufacturers around the world, focusing on CNC machining and sheet metal fabrication. Our CNC machining and sheet metal fabrication products are widely used in aerospace, national defense, automobile, energy, industry, medical, dental, robot, electronics, and consumer goods. The rich business scope makes us know more about your industry top standards, so we are confident that the products perfectly meet your needs, and we are proud to say that we serve 500+ customers in 50 + countries every single year.

EV chargers enclosures of each part of the charging pile shell are different. The shell of the charging pile and the shell of the charging gun is recommended to choose flame-retardant, weather-resistant, and low-temperature resistant modified plastic materials. More commonly used for PC, halogen-free flame retardant PC/ABS alloy materials. PET and PA66 series of modified plastic materials are recommended for plugs and sockets.

Plastic-made products, injection molding machines,s, and injection molding products are more varieties, the application range is wide, and injection molding products are widely used in transportation, packaging, post and telecommunications, communications, construction, household appliances, computers, aerospace, etc. All areas of the national economy have become an indispensable means of production and consumption of goods.

Sheet Metal Fabrication mainly includes cutting blanking, CNC bending, punching shear, stamping, round, riveting, welding, and other methods of technology. Can also be said to be a variety of equipment working principles and control methods. All sheet metal processing technology is based on the sheet metal engineers before the operation of the product drawings are carefully designed and specifications marked. Sheet Metal Fabrication as the name implies is to use sheet metal processing according to the demand to do need items. There are a computer case cabinet, TV backplane, car shell, air conditioner shell, terminal integrated case, charging pile box, and so on.

Commonly used materials are SPCC, SECC, copper, aluminum, stainless steel, aluminum, etc Metal processing applications electrical control box, machine casing, etc. Workpiece absorption sheet metal processing temperature rises rapidly, and melting or vaporization, even if the melting point is high, hardness and brittle materials (such as ceramics, diamond, etc.) can also be sheet metal processing; easy to control, easy to be combined with precision machinery, precision measurement technology, and electronic computer, to achieve a high degree of automation and high processing accuracy. Read extra info on https://www.bergekcnc.com/.

Best rated power press machine manufacturer 2022

Excellent power press machine provider in China? Hydraulic press brake machines are divided ito manual bending machines, hydraulic bending machines and CNC bending machines. Manual bending machines are divided into mechanical manual bending machines and electric manual bending machines. According to the synchronization method, hydraulic bending machines can be divided into: torsion axis synchronization, machine-hydraulic synchronization, and electro-hydraulic synchronization.According to the movement mode, hydraulic bending machine can be divided into up-moving typ and down-moving type. Find additional details on world press machine.

Side length of bending part: Assumin tht it is bent 90° longa 5 10-oot 1-gauge low-carbon steel plate, the bending machin mu apla ditonal 5 tos of pressr to lifthe sel plae u, ad the operator must be prepared for the 280-pound straight edge drop. Several strong workers or even a crane may be required to manufacture this part. Operators of bending machnes oteneed to bend long-side parts without realizing how strenuous their work is.

Working together for customer success. Since the foundation of the Yinxin world press machine company, one of the foundation principle has been to work closely with our customers. This provides the opportunity to continually assess and improve the levels of service we offer and to create the most innovative products available. Yingxin World Press Machine Company has exporting center in Shanghai with professional team to follow up logistic and document process, which also saves a lot of time in middle process. More than 65 years experiences focusing on producing power press machines.

When free bending is used, the bending radius is 0.156 times the opening distance of the die. During the free bending process, the opening distance of te die shoul b 8 tms te thickness of the metal material. For example, when using 1/2 inch (0.0127 m) open distance to form 16 gage mild see, the bendig adis o the par is about0.078 inches. I h bndig radius is almost as small as the material thickness, a bottomed die must be formed. However, the pressure required for forming a bottomed die is about 4 times greater than that of free bendingIf the bendig radius is less than the thickness of the material, a punch wit afrontend filet radus smaller than the thickess of the material must be used, and the imprint bending methoc must be used. In this way, 10 times the pressure of free bending is required.

The reason for this is the significantly lower modulus of elasticity of aluminum compared to stel. However, i ore to realise reaterdegrees o defration, sale straightenig rolls must be used. With high-strength steels, on the other hand, a conflict of objectives arises. On the one hand, their high yield strengths require enormous forming forces and torques; on the other hand, small straightening rll diameters are als ned here to ahie asufficent egeo p lstificaton.The straightening o both aluminum and high-strength steels therefore requires a forming geometry adapted to the respective product. This is essentially determined by the number, diameter and spacing of the straightening rolls. See additional information at https://www.pressmachine-world.com/.

Mechanical seal supplier right now

Top mechanical seal supplier by lepuseal.com? The durability of any product is always important; can you purchase a product if you knew it will not last the way you expect it to? For you to purchase shaft seals the first thing that comes to your mind is its durability, so that you may not end up regretting purchasing them when they start wearing out faster than you intended. There are important factors that you should put into consideration to ensure that your shaft seals are able to give you quality services and can last longer. But there are also other factors that may disappoint you through reducing the lifespan of your shaft seals. This means that you need to be cautious of how you will handle these factors so as to avoid the expected recurring problem of changing shaft seals. Normally as you might expect, shaft seals should last longer for the period that will almost be at your satisfaction.

Lepu Seal grundfos mechanical seal manufacturers takes customers’ needs and real conditions into the serious consideration. Different types of materials including carbon, SIC, ceramic, high-density silicone are well chosen for manufacturing the sealing face. Before delivering, the product will be tested for several times and is guaranteed to have a long lifespan. Grundfos mechanical seal is one of the hottest products in Lepu Seal. We adopt the parts from Grundfos, the world’s largest pump manufacturer to ensure the quality of the seals. Discover additional info on mechanical seal supplier.

The flygt pump seal is designed with the upper seal and lower seal. By using the Tunsten carbide, Tungsten carbide, and viton, the upper and the lower of the seal can be fitted smoothly, which ensures low leakage rates. When being operated in a controlled environment, the upper seal offers very high resistance. As for the lower seal, it features sturdy design and should be able to cope with fibrous clogging matter, hard abrasive particles, and chemically aggressive media, etc. The product is designed to accommodate short shaft overhang. Torque locks and drivers are independent of the shaft rotation and pump pressure acts as a closing force on the seal. What’s more, the frame of this Flygt mechanical seal is made of aluminum shell instead of old plastic frame, making the seal stronger and helping to against rusty problem.

At Lepu Seal, we ensure that the product is designed totally based on the original Blackmer mechanical seal. Nissin Mechanical seal is a special mechanical seal replacement for Nissin pump. We carefully select the materials for ensuring the performance of the product. As for the sealing face, we strongly recommend SIC, ceramic, and carbon, ensuring the product have strong structure and have the advantages of corrosion and rust resistance.

LEPU SEAL(China mechanical seal manufacturers) provides a wide range of Mechanical Seal for customers. Mechanical Seal is in line with stringent quality standards. The price is more favorable than other products in the industry and the cost performance is relatively high. LEPU SEAL insists on the principle to be honest, practical, and efficient. We continue to accumulate experience and improve service quality, so as to win praise from customers. We supply high-quality Mechanical seal, Grundfos mechanical seal, Burgmann mechanical seal, Cartridge Seal, Bellows Seal,etc. Discover even more details at China mechanical seals.

For better satisfying the needs of customers, the product can be provided with different shaft sizes ranging from 24mm to 100mm. In Lepu Seal, Alfa Laval mechanical seal LPSRU3 is a professionally designed mechanical seal replacement for Alfa Laval pump SRU3. Super light screws are designed on the seal ring, which both guarantees the easy operation and strong structure. Each product is designed with precise dimension ranging from 20mm to 45mm, which can satisfy the different needs of customers.