... .Material: ductile iron GGG500-7 2.standard:EN124 3.Max pressure:A15,B125,C250,D400 Sand Casting Manhole Cover ... and samples provided by the customers with excellent quality. Other Detailed Description1. Product information Surface is ... blow holes, distortion or any other defects. 2. Material Ductile Iron GGG500 / Grey Iron GG20. 3. Designs ... Coating as per customers' requirement. EN124 Manhole cover