Material A) Ductile Iron B) Grey Iron 1) Product information: Manhole covers are ... 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 ... in-house B) Third party inspection available upon request 7) Packing Steel or wood pallet, or as per customers' requirements. cast iron ...