K class ductile iron water supply pipe K9 Class Ductile Iron pipes, produced by centrifugal casting process,in accordance with ISO2531,EN545,GB/T 13295. Specification Application Water supply Success Story Luoma Lake Water Source and Second Surface Water Plant Project Tianjin Water Resources and Water Source Emergency Water Supply Project Renqiu Surface Water Plant Project Supporting Pipe Network Project Related Products Growth in all Regions and strong outperformance in the second quarter Norgard® China Team Wins Student Prize at the 21st edition of Saint-Gobain Architecture Student Contest Saint-Gobain's Largest Single-Line Plasterboard Plant in Asia Starts Production in Kaiping, Guangdong