... Gr5,Gr7,Gr9,Gr12 2.Standard:ASME B16.5,ANSI B16.5,DIN2630~2636 3.Flange surface: FF,FG,RJ ... 030.080.0150.300.25/////balGr 50.050.080.0150.400.205.5~6.753.5~4.5///balGr 70.030.080 ... .0150.300.25//0.12~0.25//balGr 90.030 ... .080.0150.250.152.5~3.52.0~3 ... .0///balGr120.030.080.0150.300.25///0.2~0.40 ...