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  • Portable Leeb Hardness Tester KH200

    Portable Leeb Hardness Tester can easily and quickly determin the hardness of metal The testing principle of the Leeb hardness tester is that under certain speed and the specified impact body force the testing surface, calculate  the hardness value from the rate of rebou...
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  • How to wear face mask correctly

    1. Before wearing face mask, better wash your hands. 2. Make sure the outer layer wearing in outside which is the colored side or can seen from the print letter. 3. The mask must cover the nose, chin, and mouth  and rope hanging on the...
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  • High precise roughness tester KR310

    High precise roughness tester KR310, the new design Split surface roughness tester is high-precision,  with touch screen, windows style, smart phone operation, suitable for various application environments for surface roughness measuri...
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