supply of materials for construction of 12 ( twelve ) nos. piggery at different site under chamurchi gram panchayat within dhupguri development block under mgnregs fund- 1 polythene sheet ( 150 gm per sqm ) 2 portland cement 3 stone aggregate ( single size ) :20 mm nominal size 4 stone aggregate ( single size ) : 10 mm nominal size 5 stone aggregate below 40 mm nominal size 6 loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) 7 coarse sand 8 hire charges of shuttering plank ( 25mm-30mm thick ) with prop including all fittings 9 silver sand 10 medium sand 11 m.s. structural works in roof trusses with tubular sections conforming to is: 806-1968 & is: 1161- 1998 ( trusses spanning up to 12.00 m ) 12 galvanised steel corrugated sheets 13 galvanised steel bolts & nuts 6 mm dia and 25 mm long round head with slots 14 galvanised steel j or l hooks 8 mm dia 15 g.i limpet washer 16 bitumen washer 17 bright finished or black enameled mild steel butt hinges 75x47x 1.70 mm 18 wire mesh ( rabbit ) 19 ms integrated grill for steel window and ventillator 20 citizen information board ( concrete ) 21 gst