Pipe Fitting, Elbow, Tee manufacturer / supplier in China, offering ANSI B16.9 ASTM A234 Wpb Butt Weld Equal 4 Inch ASME A403 Wp 304 Carbon Steel Stainless Steel Seamless Pipe Fitting Reducing Tee, Carbon Socket Weld Cap 3000#, High Quality Threaded Pipe End Cap Stainless Steel BSPP BSPT NPT Casting Butt Welding Fitting Caps Carbon BSPT/NPT Threaded Pipe Fitting and so on.