... flanges, high-pressure flanges, threaded flange and so on2. Standard: DIN, ANSI B16.5, BS4504, JIS, GB, JB3. Material: ASTM : A105 ... (LF1,LF2,LF3), A182 , F321, F304,F304L,F316,F316L,F316Ti DIN: C22.8, C21, RST37.2 JIS: SS400, SF440A , SUS304,SUS304L,SUS316 ...