... ,material:Gr1,Gr2,Gr3,Gr4,Gr5,Gr7,Gr9,Gr11,Gr12etc 2,standard:ASTM B/ASME SB861,337 and 338 The feature of ... :Gr1,Gr2,Gr3,Gr4,Gr5,GR7,GR9,GR11,GR12 etc 2.standard:ASTM B/ASME SB861,337and 338 3.specification:outer diameter ... for its good elogation and excellent corrossion-resisitance.CP grade 2 is widely used in the commerciallu pure Titanium.CP grade ...