supply of materials for mgnregs work , stone aggregate (single size) 40 mm nominal size , stone aggregate (single size ) 20 mm nominal size , stone aggregate (single size) 10 mm nominal size , coarse sand (zone lll) , portland cement , galvanised wire mesh of average width of aperture 1.4 and nominal dia of wire 0.63 mm , wire nails , 20 mm aluminium aldrop , gi trafford profile sheet 0.35 mm thick , bitumen washer , g i limpet washer , galvanised steel j or l hooks 8 mm dia , galvanised steel bolts and nuts 6 mm dia and 25 mm long round head with slots , red oxide zinc chromate primer , epoxy paint , mild steel tubes hot finished welded type , welding by electric plant , solid blocks of size 30x20x15 cm , pvc corrugated roofing sheet