supply of different materials for 3208001003 / av / gis / 1034699 constr of hume pipe culvert near bhogjaan under cooch behar 1 dev block-1 1st class picked jhama bricks ( traditional ) 2 stone aggregate ( single size ) :20 mm nominal size 3 stone aggregate ( single size ) : 10 mm nominal size 4 portland cement 5 carraige of stone aggregate 40 mm nominal size 6 carraige of stone aggregate below 40 mm nominal size 7 carraige of stone aggregate40 mm nominal size and above 8 loading unloading & stacking sand / stone aggregate ( above 40mm nominal size ) 9 loading unloading & stacking sand / stone aggregate ( less than 40mm nominal size ) 10 coarse sand 11 display board 12 gst