Cold Drawn Stainless Steel Seamless Tube, polished, ASTM A312, A269, A213,A 270, etc. TP304, TP304L, ... TP316, TP316L, 321. Cold Drawn Stainless Steel Seamless TubeFeatures:1) O.D.: 6 - 219mm2) W.T.: 0.8 ... case, or as per customers' requests. Cold Drawn Stainless Steel Seamless Tube