... Material:Gr1,Gr2,Gr3,Gr5,Gr7,Gr9... titanium tube pass ISO9001:2008 ASTMB337,ASTMB338,GB/T3624-1995... ... Seamless/ welded) SEAMLESS TITANIUM TUBESpecification and Standard for price Titanium tube and Its Alloys:DescriptionGradeSize (mm)StandardRolled Seamless TubeGR1 ... 20GR12more than 440__more than 18Application of price titanium tube: hot exchange equipment including arrange heat exchanger, ...