Pipe Fittings, Flanges, Valves manufacturer / supplier in China, offering Seamless Carbon Steel NPT Male Thread Schedule 40/80 Long Nipples and Short Nipples, Galvanized Seamless Carbon Steel Male Female NPT Threaded Pipe Nipples, 1/2" Stainless Steel Plumbing Pipe Fitting NPT Threaded ANSI B1.20.1 Screw Nipple and so on.