Material A) Ductile Iron GGG500-7, GGG 400-12, B) Grey Iron GG15, 20, 25, 30, 35 1) ductile grating Spain to the surface appearance ... soil on the road. 2) Material A) Ductile Iron GGG500-7, GGG 400-12, B) Grey Iron GG15, 20, 25, 30, 35 3 ... ) Packing Steel or wood pallet, or as per customers' requirements Ductile Iron Gutter Grating