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:-