Stainless steel has good ductility, but its hardness and carbon steel have a certain gap. In fact, the hardness of 316 authenticate stainless steel A4-80 can only reach 8.8, which is equivalent to...
Each tapping screw is composed of three parts: the head, the rod and the end of the rod. Each tapping screw is composed of four elements: head shape, screw mode, thread type and end form. The head...
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