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الشخص الذي يمكن الاتصال به Mr. Kevin
No 3207 Chuansha road, Shanghai, Shanghai
Model HB*2, testing method is based on a certain diameter steel ball, in the instantaneous impact loading imposed upon, so that pieces of steel ball caught being tested with the standard hardness test blocks, thus obtained in the standard test block and the indentation on the parts being tested, through the two indentation measurements with a simple look-up table can prompt access to the hardness values of specimens, and also determine the approximate and rapid tensile strength of ferrous metals and nonferrous metals.
