... ,10K,16K,20K,30K,40Kstandard:JIS,BS,EN,ASTM,DIN,SABS,GOSTmaterail:CS RST37.2,S235JR,C22.8,Q235,A105,SS400 ... product some kinds of flange and flange plate.Such as: reducing flange, Stainless steel flange, Blind flanges, Welding plate flange, Flat Welding Flange Covers etc.There ...