... , TP321, TP321H, TP347, TP347HSeamless Austenitic Stainless Steel Tubing for General ServiceASTM A269ASME SA269OD: 6.0~50.8mmWT: 0. ... TP317L, TP321, TP321H, TP347, TP347HSeamless Duplex Stainless Steel Tubing for General ServiceASTM A789 / A789MOD: 19.0~60.5mmWT: 1 ... , MT317, MT317L, MT321, MT321H, MT347Seamless Stainless Steel Tubes for Pressure PurposesEN 10216DIN 17456, 17458OD: 6.0~530.0mmWT: 0. ...