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Hardness is a commonly used property index in mechanical properties of metal materials. The iron wire factory introduces a fast and economical test method for hardness testing. However, for the hardness of metal materials, there is not a unified and clear definition including all test methods at home and abroad. In general, the hardness of a metal is often considered to be the resistance of the material to plastic deformation, scratches, wear, or cutting.

Blade thorn rope because the volume is relatively large, so the thorn rope factory is used to packaging treatment.

1. The diameter of the raw material and the thickness of the diameter are directly affected;