... , GB/T 3625-1995material: Gr1, Gr2, Gr3, Gr5, Gr6, Gr7, Gr9, Gr12 Titanium tubeStandard: ASTMB337, ASTMB338, GB/T3624-1995, GB/T ... 3625-1995material: Gr1, Gr2, Gr3, Gr5, Gr6, Gr7, Gr9, Gr12Titanium tubeSpecification: ASTM B338, B337, B861SIZE: OD 6-120mm, THK ...