bids are invited for purlin- using rectangular hollow section size 80 x 40 x 3 mm thick , ms column of size 80x40x3mm and 3000mm long with 8 mm base plate , cement 43 grade of 50 kg , natural sand confirming to is 383 1970 , aggregate 20mm , aggregate 40mm , sub class b bricks of size 230mm x 115mm x 75mm , size of door 1100x2100mm , sunshade made of size 1200x600mm , window size of 1200 x 1200 , ppgi sheet .5 mm thick , paint red oxide , paint black , paint og , thinner , paint brush 100mm dia , self tapping screw40mm , switch and socket comb 15 amp , mcb 32 amp dpwith gang box , led bulb 9 watt , batten holder , pvc gangbox 4x4 , steel screws 25mm long , pvc casing capping20mm dia , insulation tape of 9 mtr long , pvc rawal plug ,labour , wall putty , wall paint , mesh 2.5mm thick withsteel fame , exhaust fan 1400 rpm , plumbing work ,electrical work total quantity : 6244