... high-voltage switch connection. Widely used in various SF6 circuit breaker. Voltage grade:High voltage72.5kv-252kv GIS/GCB;Ultra-high voltage 363kv-800kv GIS/TGCB;Extra high voltage ... ,5154,LF10,LY11,LY12Surface treatment: Transparent oil, rust-proof oil. High voltage forging aluminum alloy flange 5083,6061,6063,2A50,5A05,2A10 ...