... ,Gr2,Gr3,Gr5,Gr7,Gr9,Gr12 2.Standard:ASME B16.5,ANSI B16.5,DIN2630~2636 3.Flange surface: FF,FG,RJ ... .5,DIN2630~2633,BS etcMaterialGr1,Gr2,Gr5,Gr7,Gr9,Gr12Size1/2''~80''(DN10~600)Pressure rating0.6~32Mp(DIN) PN6,PN10 ... .080.0150.250.152.5~3.52.0~3.0///balGr120.030.080.0150.300.25///0.2~0.40.6~0.9bal ... Gr5 Titanium flange DIN 2636 for industry use