... .over ten years supplier 4.partner: Canon stainless steel hex head bolts Material:stainless stell,carbon steel,alloy steelstandard:according to the drawingSize:dia ... -V, Tri-wing,Spanner,Clutch.etcRaw Material1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS4202.Steel:C45(K1045), C46(K1046),C203.Brass:C36000 ...