... .47,DIN 2634,DIN 2636,and so on.SizeBlind Flange: 3/8"~100" DN10~DN2500Pressure American Series: CLASS 150, CLASS 300, CLASS ... B16.9. SH3408 SH3409, HG/T21635, HG/T21631, SY/T05010Size: 3/8"~100"Material: ASTM A105,20#,15CrMo, 1Cr18nI9Ti, 321, 304, 304L ...