... s drawing.Materials Available1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS4202. Steel:C45(K1045), C46(K1046),C203. ... dart shafts),gears (pinions, wheels ) bearing, bearing seat, spring, connector, socket, bushing, push-button, etc.Surface Finishannealing, natural anodization, ... properties and chemical elements according to your request High quality and have a certificate hardware products