Oxidation contact produced by pre-oxidized and internal oxidation it has following properties:long life time of the contact High Quality tri-metal contact point/bimetal contact point/silver point 1.Face material: Solid or bimetal PAg,AgCe0.5 AgCdO,AgSnO2,AgSnO2InO3,AgZnO,AgNi,ECT 2.Base material: Cu Normal:1.5mm-8.0mm,According to customers drawing or sample Silver thickness:0.15mm-solid; Normal: ...