Advantages of ductile cast: solid casting used in the production of polystyrene foam appearance, taste furans application Resin Sand molding When the liquid metal casting type, foam plastic look quickly at high gasification endless liquid metal effect, burning. Consumers husband manhole covers bearing liquid metal takes the place occupied by the original plastic bubble Wang sold manhole covers, cooling solidified into shape and look the same real castings. Good resin sand stiffness. This conditional use cast iron solidification process graphitization expansion, effectively eliminate shrinkage, shrinkage defects, to achieve low riser gray iron, ductile iron, non-riser casting foundry in Taigu Chang share with you how to choose the ductile covers manufacturers: 1. Advanced process equipment and improve the quality inspection system 2. 3. 4. Improve the quality of raw material supply service Taigu Chang foundry specializing in the production of ductile iron manhole covers! Address: Taigu County, Shanxi Province, Hu Dong village town 108 State Road crossing. Manhole covers installation, Chang-year foundry (certified), Northeast ductile iron covers by Taigu Chang in foundry. Taigu Chang in foundry (www.sxcnzz.com) is Jinzhong, machining leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Chang in foundry leadership with the staff warmly welcome all inquiries negotiations to create Chang foundry in a better future.