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  • Knowledge and use of calender
    • April 13, 2022

    A calender is composed of two or more rollers arranged in a certain form, under a certain temperature, the rubber or plastic is pressed and stretched into a film of a certain thickness and surface shape, and can be used for fiber curtain canvas or Machinery for hanging glue on steel cord. The calender can be divided into two-roller, three-roller, four-roller and five-roller calender according to t...

  • What is the pressure cycle tester?
    • June 06, 2022

    The pressure tester is an instrument used for pressure resistance, pressure holding test and vacuum holding pressure test with helium and nitrogen as the test medium. production workshop. Introduction Pressure tester: In the production process of air-conditioning units and fin heat exchangers, it is necessary to test the sealing performance and pressure resistance of products. Generally, the readi...

  • What is drilling and tapping machine?
    • July 04, 2022

    Drilling and tapping machine is a metal cutting machine tool, CNC machining equipment, similar in style and function to the machining center, but smaller than the machining center, with a general stroke of 500*400. Features The drilling and tapping machine has a super-large column that is stable and can be displaced at a high speed of 60m/min without deformation. Ultra-large span base, six-point s...

  • What is the working principle of the abrasion tester?
    • July 11, 2022

    The abrasion resistance testing machine is used for abrasion resistance testing of leather, cloth, paint, paper, floor tiles, plywood, glass, natural rubber, etc. The working principle is to use a specific type of grinding wheel to wear the test piece under a certain load, and to evaluate the wear resistance characteristics of the test piece by the weight lost after the test piece is worn for a fi...

  • The working principle and operation precautions of the withstand voltage tester.
    • November 07, 2022

    Withstand voltage tester, also called electrical insulation strength tester, or dielectric strength tester, also called dielectric breakdown device, dielectric strength tester, high voltage tester, high voltage breakdown device, withstand voltage tester, etc. It is mainly used for the withstand voltage test of polyethylene insulated power cables, and can also be used for the insulation withstand v...

  • Features of the tap flow testing machine
    • April 11, 2023

    Features of the tap flow testing machine 1: It has the function of cold water and hot water, the hot water temperature is 90℃, and the cold water is room temperature tap water; 2: Static pressure test using tap water test; 3: the flow rate and static pressure test pressure can be adjusted and controllable; 4: Heating the water temperature is equipped with an insulation layer, which can be heated f...

  • What is the effect of PTFE?
    • August 21, 2023

    As we all know, the raw material tape is used to seal the joints of the pipes to make the pipes more tightly sealed. If the seal is not good, leakage will occur. As it stands, leakage is a common phenomenon in nature. Leaks of tap water and gas in daily life often bring inconvenience and even harm to people; in industries such as pressure vessels, pipelines, reactors, valves, hydraulic equipment, ...

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D&S Automatic Co.,Ltd. located at the China plumbing town of Fujian Nan'an,It is a professional machine company. We supply you modern facilities,such as faucet, valve, brass fitting, cartridge, brass fittings, teflon tape and all kinds of machines. 

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