required in GB/T8320-2003.Our Cu/CuCr-W contact is fixed in the high-voltage switchgear like 126/145 kV, 252 kV, 550 kV Gas Insulated Switchgear (GIS).The users praise our contact conformably. The company mainly provides service for Xidian Group,Pinggao Group,Sieyuan Electric and CHINT ...