... fittings Certificate:ISO ,BSI Surface:Black and Galvanized OUR PRODUCTS RANGE MaterialMalleable casting ... , Plug, Cap, Nut, Union, BushingSurfaceHot-dipped galvanized, Normal black, Shining blackGradesHeavy series, Standard series, Medium series, Light seriesSize3/ ... demandCertificateBSI, ANAB, ISO9001ApplicationsSteam, air, gas and oil pipes or for many other fluids1.OursWe are manufacturer of ...