... etc. 3.OD:3/8"-16" 4.WT:SCH10S-SCH80S Welded/Seamless Austenitic Stainless Steel pipes with grade of TP304/304L ... according to standard ASTM A312.Items Description Rarmks Commodity name welded stainless steel pipe Materials 300series including304,TP304,304L,316,TP316 ... ISO9001 or according to customers’ request Type And Process Method Welded, cold drawn, roll-formed ,cold-roll shape: round or square ...