Pipe Fittings, Flanges, Valves manufacturer / supplier in China, offering ASME B16.9 Carbon Steel/Stainless Steel Butt Weld/Welding Pipe Fittings, 2000lb 3000lbs Carbon & Stainless Steel Socket Weld/Welding & NPT Threaded Pipeline Forged Blank Fittings, 3000#/6000lbs Forged Carbon Steel Pipe Fittings/Socket Weld/Welding (Sw) 45 Deg Elbow and so on.