Tender For supply of pipe and slip on flange and weld neck flanges and blind as per annexure a : : - sa 312 gr tp 316l pipe size 6 inch schedule 40 as per annexure-a , sa 182 gr f316l slip on raised face flange 25 nb, as per annexure-a , sa 182 gr f316l slip on raised face flange 50 nb, as per annexure-a , sa 182 gr f316l weld neck raised face flanges 150 nb, as per annexure-a , sa 182 gr f316l blind raised face flange size 6 inch as per annexure-a