... ,in accordance to standards like ASME B16.5,ASME B16.47,DIN 2634,DIN 2636,and so on.SizeBlind Flange: 3/8"~100" DN10~ ... Ring Joints Face(RJ)Standard:ANSI,JIS,DIN,ISO, SNSI, JIS, DIN, GB/T12459, GB/T13401, ASME B16.9. SH3408 SH3409, HG/T21635, ... are made according to ISO9001:2000 strictly.keyword:blind flange,blind pipe flange,A105 blind flange,ANSI flange,JIS flange,DIN flange ASTM B16.5 blind flange