Carbon Steel Butt Weld Pipe Fittings Seamless Reducing Tee Get Latest Price . Min. Order / Reference FOB Price 1 Piece US $0.3-500/ Piece Port Tianjin, China Production China Seamless Butt Welding Pipe Fittings, Seamless Butt butt welded seamless carbon steel pipe fittings1.4301 En10253 API 304 321 310S Butt Weld Ss SUS304 SUS316 Super Duplex 2205 Uns31803 Seamless Welding Cap Reducer Bend Tee Elbow Stainless Steel Pipe Fittings