bids are invited for hut number 3 at ramnagar ordinary portland cement - 43 grade , pulverised stone sand dust - fine aggregate , stone aggregate - size 20 mm , stone aggregate - size 40 mm , ms wire nails - assorted sizes , ppgi roofing sheet 0.50 mm thick - 12 ft , window stay wind tie flat - 40 mm x 6 mm , plain aluminium ridge sheet - width 500 to 600 mm , synthetic enamel paint - high gloss , paint thinner - 1 litre bottle , gi angle equal angle section - size 75 mm x 75 mm x 6 mm , hex head bolt - 0.5 inch diameter x 6 inch length , self drilling screw - 4 inch length , marine grade plywood - 12 mm thickness , paint brush - 4 inch size