... JiXing machinery manufacturing Co., LTDFlange:plate,slip on ,welding neck, theaded,lap joint size:1/2"-48" DN15-DN2000 15A-1500Apressure:class ... as: reducing flange, Stainless steel flange, Blind flanges, Welding plate flange, Flat Welding Flange Covers etc.There are four ways of Flange ...