... :China XD Electric Co., Ltd;(Stock code,601179); Xian XD Switchgear Electric Co., Ltd; Henan Pinggao Electric Co., Ltd. , (600312, SH ... , stainless steelSurface treatment: Transparent oil, rust-proof oil. aluminium alloy electrical contacts GIS,5052,5083,6061-T3/T5/T6,6063,5A05 ...