... , rivet material: solid silver alloy contacts and bimetal contacts, welding material: Ag, AgNi, AgCuNi, AgSnO22: OEM/ODM parts of ... parts, engine parts, computer electronics.3: Process: punching, riveting, welding, metal processing4: Applied software for specification drawings: Auto CAD, Pro ... machine: 0.5-80tons, Germany and Japan Auto welding system, Japan auto stamping and riveting assembly system.