1.steel pipe flange,ansi flange,tube flange for pipe joint 2.1/2'' to 60'' 3.high quality 4 ... CE,ISO flange steel pipe flange,ansi flange,tube flange for pipe joint 1.Products Items:Slip-on welding flange;welding nece flange;socket welding flange;threaded flange;lapped flange;blind ... ANSI, ISO, JIS, DIN, BS, GB, SH, HG, QOST, ETC.6. CE and certification: ISO9001:2000, API, BV, SGS, LOIYD7. Applications ...