... Pressing Parts: 1: pressing parts material: Copper, Brass, Bronze, CuSn, CuNi, Ni, CuNiZn, Monel, rivet material: solid silver alloy contacts and ... bimetal contacts, welding material: Ag, AgNi, AgCuNi, AgSnO22: OEM/ODM parts of Pressing Parts: Yes, ... machine: 0.5-80tons, Germany and Japan Auto welding system, Japan auto stamping and riveting assembly system.6: Surface ...