bids are invited for custom bid for services - i1052 supply of spares engineer services for interrupter overhauling work of cgpisl make 400 kv circuit breakers at 400 kv kanpur substation - o ring p-260 , o ring p-170 , o ring p-135 , o ring p-40 , o ring p-7 , o ring p-12 , o ring p-18 , etna seal set , absorbent , micro-carbon grease (1pkt = 50g) , jointal - z (1pkt = 10g) , anabond 680 (1 tube = 100g)/ silastic 1080 100g , emery pad , interrupter porcelain , manual slow closing jack 400kv , interrupter case , moving arc contact with guide , stationary arc contact , trip coil , gas pressure gauge , gas pressure switch q6 , operation counter , puffer cylinder assembly with contact & nozzle