... Founed in 2007. We professionally export, design, produce and sell flange, such as ANSI/ASME, MSS, JISB2220, DIN, BS, EN1092, ... GOST,UNI, AS2129, GB, HG, SH standard steel flanges, such as Plate flange, Welding neck flanges, Blind flanges ... Slip-on flanges, Socket welding flanges, Threaded flange, Lap joint flange and flange pipe fittings.The main materials of flanges are carbon ...