Welding Neck Flange, Carbon Steel Flange, Pipe Flange manufacturer / supplier in China, offering Durable A105 16mn Precision Machined Carbon Steel Flange, ANSI B16.5/DIN/GOST/Forging Fitting Carbon/Stainless Steel Pn10/16 Welding/Weld Neck/Threaded/Blind/Slip on/ Plate/Socket/ Orifice RF/FF Pipe Fitting Flangeans, Forging Stainless Steel Flange for Enhanced Performance and Longevity and so on.