bids are invited for custom bid for services - 2122 371 total lumpsum amount for total estimated qty including gst for supply removal renewal of lrb insulations only thickness 130 mm of various pipe headers steam drum pent house valves ducts of boilers including all a.. , custom bid for services - total lumpsum amount for total estimated qty including gst for supply removal renewal of lrb insulations along with ai sheet thickness 130 mm of various pipe headers line steam drum valves ducts of boilers including all ac.. , custom bid for services - total lumpsum amount for total estimated qty including gst for supply removal renewal of lrb insulations along with removal and fitting of corrugated sheetgi sheet thickness 130 mm of water wall tube of boilers including al.. , custom bid for services - al lumpsum amount for total estimated qty including gst for supply renewal of calcium silicate insulation thickness 150 mm of 10 inch main steam line and valve of boilers including ll activities as per the sow , custom bid for services - total lumpsum amount for total estimated qty including gst for erection of tubular pipe scaffolding per the sow