titanium exhaust pipe 1.material:Gr1,Gr2,Gr3,Gr4,Gr5, GR7 ... etc 2.standard:ASTM B/ASME SB861,337 and 338 titanium exhaust pipe1.material:Gr1,Gr2,Gr3,Gr4,Gr5, GR7 GR9 GR11 ... 4-10mm4.Applications:Materials Applications Gr1deep drawing parts Gr2commercially pure Titanium Gr3 pressure vessel Gr4 some fittings and fastening pieces ... any inquiries!Tel:86-10-89243065Fax:86-10-89243047 titanium exhaust pipe