black/galvanized chinese fittings Certificate:ISO ,BSI Surface:Black and Galvanized OUR PRODUCTS RANGE MaterialMalleable casting iron ... , Nipple, Plug, Cap, Nut, Union, BushingSurfaceHot-dipped galvanized, Normal black, Shining blackGradesHeavy series, Standard series, Medium series, Light ... .OursWe are manufacturer of malleable iron pipe fittings with self-management export power.Our products 100 ...