supply of materials for mahatmagandhi nrega works ( ward 5 to 9 ) -2 hire charges of concrete mixer 0.25 to 0.40 cum with hopper 3 vibrator ( needle type 40 mm ) 4 stone aggregate ( single size ) : 40 mm nominal size 5 stone aggregate ( single size ) :20 mm nominal size 6 stone aggregate ( single size ) : 10 mm nominal size 7 portland cement ( govt.approved brand only ) 8 coarse sand ( zone iii ) 9 fine sand ( zone iv ) 10 twisted steel / deformed bars 11 structural steel such as tees, angles, channels and r.s. joists 12 galvanised steel bolts & nuts 6 mm dia and 25 mm long round head with slots 13 galvanised steel j or l hooks 8 mm dia 14 stone for masonry work 15 g.i limpet washer 16 bitumen washer 17 g.i. plain washer thick 18 welding by electric plant 19 wire nails 20 polyethylene water storage tank with cover and suitable locking arrangemnet 21 mild steel tubes hot finished welded type 22 red oxide zinc chromate primer 23 stainless steel screws 50 mm 24 gi trafford profile sheet 0.35mm thick 25 galvanised wire mesh of average width of aperture 1.4 and nominal dia. of wire 0.63 mm 26 pincoda wood scantls 27 green net 75% shade 28 precoated aluminium trafford sheet 0.450mm thick 29 laterite stone of size 35x20x20cm 30 pvc corrugated roofing sheets 31 solid blocks of size 40x20x15cm 32 pvc pipe 15 mm outer dia 10kgf / cm2 33 solid blocks of size 30x20x15cm 34 pvc pipe 63 mm outer dia . 6kgf / cm2 35 pvc elbow 63 mm dia 36 pvc 45 degree elbow 63 mm dia 37 pvc door elbow 63 mm dia 38 pvc bend 63 mm dia 39 pvc tee 63x63x63 mm dia 40 pvc end cap 63 mm dia 41 pvc socket / coupling 63 mm dia 42 pvc reducer 63x50 mm dia 43 pvc reducer 75x63 mm dia 44 royalty for good earth 45 precoated galvanised steel plain ridges 46 pvc pipe 25 mm outer dia. 10kgf cm2 47 pvc pipe 110 mm outer dia 6kgf / cm2 48 white vitreous china 10 lit. ( full flush ) capacity controlled low level flushing cistern with all fittings 49 material - 75 mm valve 50 15 mm ptmt bib cock 51 quarry waste 52 bamboo 25 mm dia 2.5 meter long