GI PIPE 1/ 2 INCH HEAVY DUTY CONFIRMING TO IS 1239_, 93209001000_ 1_ 1000068404, 1/ 2 INCH OD SEAMLESS SS, 316 TUBE CONFORMING TO IS 17875_ 93314102160_ 2_, 1000068404, ERW PIPE 1 inch NB DIA AS PER IS1239_, 93315412570_ 3_ 1000068404, 1/ 4 INCH OD SEAMLESS SS, 316 TUBE CONFORMING TO IS 17875_ 93321010290_ 4_