bids are invited for custom bid for services - labour charge for lying and fixing in position fiber cement based non asbestos corrugated roof sheet confirming to is14871 at all heights as direct on roofs monitors 2100 sqm as per scope of work , custom bid for services - supplying providing strengthening cutting sizing drilling suitable hole and fixing gi flats wind ties 40mm x 6mm over acc non asbestos sheet translucent sheet roofing at all height and levels 3000 kg as per scope of work , custom bid for services - supplying providing fixing at and all heights 2 mm thick frp translucent sheets profile in line and level of asbestos nonasbestos roofing sheet with roof fasteners like galvanized 75 sqm as per scope of work , custom bid for services - supplying providing and fixing at all heights bitumen felt bitumen by using blow lamp to seal the holes on ac sheet roof to prevent leakage and other accessories 300 each as per scope of work , custom bid for services - labour charges of cleaning of sand debris from roof drain gutters at various level of mineral separation plant and bagged ware house central store workshop and disposing of it at least 100 m away from the building 600 rm a..