Flange, Pipe Fittings, Forged Flange manufacturer / supplier in China, offering Stainless Steel/Butt Welded/Carbon Steel/Pipe Flange with Neck 314/316 Factory Price, Custom Ss201 Ss303 SS304 SS316 Q235 CNC Machining Pipe Fitting Flange, Slip on Flange/Carbon Steel Pipe Fitting Flange/Stainless Steel Flange/Welded Neck Flange and so on.