... contact point/electrical tri-metal rivet/moving contact for thermal protector or heaterFace material: Solid or bimetal PAg,AgCe0.5 AgCdO ... ,AgSnO2,AgSnO2InO3,AgZnO,AgNi,ECTBase material: CuNormal:1.5mm-8.0mm,According to customers drawing or sampleSilver thickness ... contact point/electrical tri-metal rivet/moving contact for thermal protector or heater