... tee, BW/butt weld tee, TH/threaded tee, SW/socket weld tee, seamless teeStandardASTM B16.9, ASTM B16.11, ... -welding and seamless);1/8''-4''(Threaded and socket-welding);16''~72''(Welded)Wall thicknessSch5~Sch160\XXSManufacturing processPush, Press, Forge, Cast, ... , pipe nipple, pipe cap, pipe union and threaded pipe socket series component products.TJGH has advanced production lines including four ...