1.Ductile Iron Pipe,K9,K8, ISO2531 2.DN:80-1400mm 3.O.D:98-1462mm ... furring,small flow resistance,easy fixing,long life time8) Class: K8, K9,K10 norminaldiameter outer diameterthickness80 98 6.0 100 118 ... .51100115214.41200125515.31400146217.1 ISO2531 / EN545 / EN598 Ductile Iron Pipe K8 K9 K10