Tender For corrigendum : supply of nw250 nab(nickel aluminum bronze) per nes 747 part1 flange per bsen1092-part-3, type-a, 14 , nw300 nab(nickel aluminum bronze) per nes 747 part1 flange per bsen1092-part-3, type-a, 14 , nw600 nab(nickel aluminum bronze) per nes 747 part1 flange per bsen1092-part-3, type-a, 14 , nw450 nab(nickel aluminum bronze) per nes 747 part1 blind flange per bsen1092-part-3, typea, 01