Performance：Smooth surface, good corrosion resistance, etc
Surface：Oxalic acid coating, bright surface, pickling surface, etc
Application：Rivets, axles, springs, hangers, kitchenware, craft products, etc
Steel material：201CU、302HQ、XM-7、304HC、304HC3、316L、316LCU、410、420、430
Thread warp(mm)：0.3-20.0
Tensile strength(N/mm)：500-900（MPA）
Warp tolerance(mm)：±0.02
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