tender for mini mcf ( ward1-16 ) work 2 stone aggregate ( single size ) :40mm nominal size 3 stone aggregate ( single size ) :20mm nominal size 4 stone aggregate ( single size ) :10mm nominal size 5 coarse sand ( zone iii ) 6 portland cement 7 g.i pipes 50mm dia 8 mild steel tubes 9 red oxide zinc chromate primer 10 welding by electric plant 11 galvanised wire mesh of average width of aperture 1.4 and nominal dia. of wire .63mm 12 wire nail 13 galvanised steel j or l hooks 8 mm dia 14 bitumen washer 15 g.i. plain washer 16 precoated aluminium trafford sheet 0.450 mm thick 17 synthetic enamel paint in black or chocolate shade