supply of various building materials i . e . rcc/pvc pipes in all villages of block nagpur distt fatehabad ( re-tender ) ( group-6 ) , rcc spun pipe np2 300 mm dia mark with is 458-1988 , rcc spun pipe np2 400 mm dia mark with is 458-1988 , rcc spun pipe np2 450 mm dia mark with is 458-1988 , rcc spun pipe np2 500 mm dia mark with is 458-1988 , rcc spun pipe np2 600 mm dia mark with is 458-1988 , rcc spun pipe np3 300 mm dia mark with is 458-2003 , rcc spun pipe np3 400 mm dia mark with is 458-2003 , rcc spun pipe np3 450 mm dia mark with is 458-2003 , rcc spun pipe np3 500 mm dia mark with is 458-2003 , rcc spun pipe np3 600 mm dia mark with is 458-2003 , 200mm dia pvc pipe ( 10 kg . pressure ) , 250mm dia pvc pipe ( 10 kg . pressure )