supply of materials necessary materials should be delivered within a radius of 50 meters from the location of each work. , materials , quarry waste , 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 iii (m-sand for concreting works) , portland cement , hire charges of concrete mixer 0.25 to 0.40 cum with hopper , vibrator (needle type 40 mm) , laterite stone of size 35x20x20cm , solid blocks of size 30x20x15cm , solid blocks of size 30x20x20cm , fine sand (zone iv) , mild steel tubes hot finished welded , red oxide zinc chromate primer , welding by electric plant , flats up to 10 mm in thickness , mild steel round bar 12 mm dia and below , gi trafford profile sheet 0.35mm thick , bitumen washer 50 , stainless steel screws 50 mm , galvanised wire mesh of average width of aperture 1.4 and nominal dia. of wire 0.63 mm , wire nails , 100 mm channel shoulder 2.5 m long , double clip (bridge clip) , pvc pipe 63 mm outer dia . 6kgf/cm2 , pvc elbow 63 mm dia , pvc 45 degree elbow 63 mm dia , pvc door elbow 63 mm dia , pvc bend 63 mm dia , pvc tee 63x63x63 mm dia , pvc door tee 63 x63x63mm dia , pvc end cap 63 mm dia , pvc socket/coup ling 63 mm dia , twisted steel/deformed bars