Home Page DUCTILE IRON GRATINGS AC 11 AC 11 EXPLANATION FOUR - LOCKS-DOUBLE - LOCKS FOUR JOINT - DOUBLE JOINT 200° OPENİNG RUBBER BASED BLACK BITUM PAINTING CODE TYPE STRENGHT CLASS DIMENSIONS A B C D CANAL H1-H2 KG 3 B110 Ağır-Heavy 400kN D400 450 1430 644 1360 418 90 160