Tender For corrigendum : supply of 80x40x3.2 rec hollow sctn_ astm-a-501gr. b - yard no. -3052 , flat bar 17x5 to gr. e250b0 - yard no. -3052 , 80x40x3.2 rec hollow sctn_ astm-a-501gr. b - yard no. -3053 , flat bar 17x5 to gr. e250b0 - yard no. -3053