... years supplier 4.partner: Canon stainless steel hex head bolts Material:stainless stell,carbon steel,alloy steelstandard:according to the ... -wing,Spanner,Clutch.etcRaw Material1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS4202.Steel:C45(K1045), C46(K1046),C203 ... steel: SCM435,10B21Surface FinishZn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate,Polish,Electro Painting, ...