bids are invited for custom bid for services - civil works hollow and solid concrete blocks as per is 2185 pvc insulated ( heavy duty ) electric cables, aluminium conductor as per is 1554 ( part 1 ) precast concrete manhole cover and frame as per is 12592 reinforced concrete poles for overhead power and telecommunication lines-is:785 xlpe cables for working voltages from 3.3 kv up to and including 33 kv as per is 7098 ( part 2 ) integral waterproofing compounds for cement mortar and concrete as per is 2645 precast concrete reinforced bench ( rdso ) prestressed concrete poles for overhead power traction and telecommunication lines as per is 1678 high strength deformed steel bars and wires for concrete reinforcement - as per is 1786 ( latest ) precast concrete pipes ( with and without reinforcement ) ( v2 ) as per is 458 ( latest ) non metal helmet for fireman and civil defence personnel as per is 2745 high density polyethylene ( hdpe ) woven beds for vermiculture with shed as per is 15907 measuring instrument ( bhel ) single operator ac and dc arc welding transformers gtaw welding machine as per is 6008 led based indicating lamp for panel cut outs plug in relay for heavy coil voltage 30v, 48v, 50v, 110v, 220v, and 250v dc ( bhel-scr ) inductive proximity sensor milliammeter-15:1248 pa mixer dc regulated power supply maintenance and pigging service for oil and gas pipelines total quantity :