tender for dismantling work of old godown and construction of new tin shade at silkuwa water works 2nd call , work to be done , demolishingr.c.c.workmanually/bymechanicalmeansincluding stackingofsteelbarsanddisposalofunserviceablematerialwithin 50 meters lead as per direction of engineer-in-charge. , structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete: , providing & fixing corrugated galvanised steel (cgs) sheet roofing including vertical/curved surface fixed with polymer coated j or l hooks, bolts and nuts 8mm diameter with bitumen and g.i. limpet washers or with g.i. limpet washers filled with white lead and including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to any pitch in orizontal/vertical or curved surfaces) excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. 0.80mm thick with zinc coating not less than 275gm/m²