... GGG500-7 (2)Standard: EN545/ ISO2531 (3)DN80-2000mm Pipe Fittings Epoxy Coating Pipe FittingsZhucheng Three-dimensional Pipeline Com.,Ltd are mainly producing ... be blue, red , yellow); Cement mortar lining and rich zinc & bitumen coating;Electrostatic spraying StandardISO2531,BS EN545,EN598,BS4772,ANSI,AWWAC110,C153 ...