... , Gr2,Gr3, Gr4,Gr7, Gr11 Material: Titanium Size: OD 6mm-90mm; Titanium tube:Place of origin: China (Mainland) Model ... Number: Gr1, Gr2,Gr3, Gr4,Gr7, Gr11Material: TitaniumSize: OD 6mm-90mm; WT 0.4mm ... To Standard2) Widely for Chemical industry, aerospace, spaceflight, titanium structure parts and fasteners for modern industry, welding filler, ...