full thread coupling

full thread coupling seamless steel pipe full thread coupling STEEL SOCKETS/MERCHANT COUPLING Product: steel sockets/steel merchant coupling Place of Origin: China. Features: 1) Material: seamless steel pipes. 2) Hot-dipped galvanized or electrical galvanized and black, also Powder coating as customer’s request. 3) Sockets are available in full sockets, half sockets and Special sockets. Customers’ drawings or designs are available. 4) Standard according to BS EN10241, ASTM A