... galvanized malleable cast iron pipe fittings: Threaded:ISO7/1, DIN2999, NPT Size:3/8", 1/2" --- 6" OUR PRODUCTS RANGE MaterialMalleable casting iron ... Tee, Cross, Socket, Nipple, Plug, Cap, Nut, Union, BushingSurfaceHot-dipped galvanized, Normal black, Shining blackGradesHeavy series, Standard series, Medium ... and get good reputation in the international market for more than 20 years.If you have some ...