Pure titanium welding and seamless tube 1.Gr1,Gr2 2.Seamless or welded 3.ASTMB862,ASTMB337,ASTMB338 Pure titanium welding and seamless tube1.Gr1,Gr22.Seamless or welded3.ASTMB862,ASTMB337,ASTMB338 Pure titanium welding and seamless tube NameTitanium tube ClassSeamless tube ,Welded tube StandardASTMB 862 , ASTMB 337,ASTMB 338 GradeGr1,Gr2,Gr3,Gr5,Gr7,Gr9,Gr11,Gr12 SizeOuter dia>=3mm Wall thickness ...