materials for nadep compost pit 30 units in 19 wards materials for nadep compost pit 30 units in 19 wards , materials , stone aggregate 20mm nominal size , stone aggregate 10mm nominal size , m sand ( z-iii ) , portland cement , hire charge for concrete mixer , hire charge for vibrator , fine sand , solid blocks , water thinnable cement primer for interior wall surface having voc less than 50 gms / litre , plastic emulsion paint , g.i pipe 40 mm dia , red oxide zinc chromate primer , welding by electric plant , gi trafford profile sheet 0.35 mm thhick , bitumen washer , g.ilimpet washer , galvanised steel j or l hooks 8 mm dia , galvanised steel bolts& nuts 6 mm dia and 25 mm long round , precasted galvanised steel plain ridges