... ,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12 2. Standard:ASME/ANSI B16.5, DIN2633, DIN1092, GOST12815, AS, BS Titanium Flanges1>1. Forging Standard: ASTM ... B3812. Producing Standard: ASME/ANSI B16.5, DIN2633, DIN1092, GOST12815, AS, BS3. Material:Titanium grade 1(GR1),Titanium grade 2(GR2),Titanium grade ...