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| The four point electrical probe is a very versatile device used widely in physics for the investigation of electrical phenomena
The effects of contact resistance can be eliminated with the use of a four point probe. A constant current is made to flo... |
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| vacuum chamber, rack and step, winding system, vacuum system, evaporation system, refrigeration and heating systems, refrigeration pumping systems and electric control system.evaporation boat... |
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| This type of machine can coat metal film on the surface of a variety of thin films (PET, BOPP, CPP, PVC) and the pretreated paper.It is widely used in the decoration, Anti-counterfeiting techniques, reflective packaging, clothes and other industries.... |
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