... grade:High voltage72.5kv-252kv GIS/GCB;Ultra-high voltage 363kv-800kv GIS/TGCB;Extra high voltage 1100kv GIS;Main customers:China XD ... /HSn60-1/BMn43-0.5/T1/T2/T3/T4/T5; High voltage copper contact seat,72.5kv-252kv,GIS,H96(C2100),H90(C2200 ...