... products include sheet metal parts, sheet metal products, hardware stampings, metal case, metal enclosure, sheet metal cabinet and so on .MaterialCarbon steel ( ... ) bearing, bearing seat, spring, connector, socket, bushing, push-button, etc.These parts are used in Automotive, Electrical, Building, ... drawings or samples2.Software for specification drawings: Pro/E, Auto CAD, solid work 2001,CAXA,UG,CAD ...