... samples 3.ISO9001:2008 4. OEM offerred Ductile iron casting parts produced as per drawing or sample 1. Company information: We ... products include: i) alloy cast irons, gray iron, Ductile iron parts (G3000, G3500, GG20, GG25, GG30, GG35, GGG40, GGG50 and GGG60 ... customers to cooperate with us. Production process: ductile iron casting parts machined as per drawing or sample