... holes, distortion or any other defects. 2) Material A) Ductile Iron GGG500-7, GGG 400-12, GGG600-3, GGG700-2 B ... ) Grey Iron GG20, 25, 30, 35 3) Designs A) EN124 A15, ... samples 4) Processes: A) Moulding boards B) Green sand with hand moulding 5) Coating A) Cold applied black bitumen B ... Packing Steel or wood pallet, or as per customers' requirements. cast iron grating