supply of air brake pipes with socket and flanges ( welded assly ) for bcn wagon consisting of following items as per rdso drawing & other technical requirement confirming to rdso drg. no. wd-84014-s / 8 alt. 6, item-1, 3, 5, 7 to 10, 13 to 20. rdso spec.no. 04-abr-2002 read with all amendment, latest amendment no-8 of sept%u201916. material specification of pipes as under:-air brake pipes with socket and flanges ( welded assly ) for bcn wagon consisting of following items as per rdso drawing & other technical requirement confirming to rdso drg. no. wd-84014-s / 8 alt. 6, item-1, 3, 5, 7 to 10, 13 to 20. rdso spec.no. 04-abr-2002 read with all amendment, latest amendment no-8 of sept%u201916. material specification of pipes as under:-, air brake pipes with socket and flanges ( welded assly ) for bcn wagon consisting of following item s as per rdso drawing & other technical requirement confirming to rdso drg. no. wd-84014-s / 8 alt. 6, item-1 , 3, 5, 7 to 10, 13 to 20. rdso spec.no. 04-abr-2002 read with all amendment, latest amendment no-8 of sept 1 6. material specification of pipes as under:- ( 1 ) pipes 32 nb seamless to is:1239 ( part-i ) heavy grade or astm a-106 gr. a. ( 2 ) pipes 20 nb stainless steel to astm-a 312 schedule 40 s gr. tp 304 ( erw ) . ( 3 ) flanges & so cket: ( i ) stainless steel to is:6911-1992x 04 gr. 19 ni 9 304 si for branch pipe 20 nb. ( ii ) is:2062-2011 amndt-1 of nov 2012 gr e250 a for brake pipe. socket & flanges to rdso drg. no-wd-83062-s-06 alt-04 & wd-83062- s-07 alt-06. [ warranty period: 30 months after the date of delivery ] general stores depot izzatnaga, uttar pradesh 312.00 set