Material:Mid/low carbon steel / Alloy steelSize:Customized, mainly produce size M24-M56,length:50-2000mmGrade:4.8/5.6/5.8/6.8/8.8/10.9 or Gr2,Gr5,Gr8Processing:Hot forge + heat treatmentStandard:ASTM/DIN/GBTesting:hardness test, roughness test, tensile...
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bolt, fasteners, copper powder, bolts and nuts, copper stamping...
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