Home Page DUCTILE IRON GRATINGS AC 22 AC 22 EXPLANATION DOUBLE - LOCKS 180° OPENİNG DOUBLE JOINT RUBBER BASED BLACK BITUM PAINTING CODE TYPE STRENGHT CLASS DIMENSIONS A B C D CANAL H1-H2 KG 3 B120 Düz-Flat 250kN C250 300 500 280-480 370 110 290-490 29