Threaded Fittings Describe: Threaded FittingsManufacture standard: ANSI B16.11, GB14626, BS3799Manufacture process: Forge, Heat treatment, MachiningOur threaded fittings include:90°Elbow, 45°Elbow, Tee, Full coupling, Half coupling, Boss, Reducing coupling, Cap, Hexagon head male plug, Hexagon bushing, Reducing hexagon nipple, Hexagonal nut, Hexagon nipple, Nipple, Street 90°elbow, Union etc.