stamping part and electrical contact: Copper,brass and silver stamping part and electrical contact Stamping parts and electrical contact:1: Face material: ... Certificate: SGS, ISO9001-2000 7:stamping parts material: Copper, Brass, Bronze, CuSn, CuNi, Ni, CuNiZn, Monel, rivet ... material: solid silver alloy contacts and bimetal contacts, welding material: Ag, AgNi, AgCuNi, AgSnO28 ...