When selecting the cast iron cover what should be the basis? Load capacity is based, broadly divided into the following three: First, the light: 25 t / m2; car, pedestrians campus residential park, park cable trench cover, underground parking and other kitchen. Second, heavy: 70 t / m2; 20 tons of plant automobile traffic, road gutter cover general atlas, roadside roads, parking lots and streets. Third, the super-heavy: 140 t / m2; five anti covers production of heavy trailers, container forklifts, cranes and aircraft traffic trunk road ductile iron manhole covers five anti, large parking lot, mines, docks and airports. Shanxi Taigu County Chang foundry is located in the hometown Inoue - Kim Gu treasure. Taigu Shanxi Jinzhong City, State Road 108, Hu village malleable Industrial Park covers five anti wholesale, long high-speed five anti covers east, north Tongyu Qi-speed transport facilities, accessible. Gu Chang foundry year round with you to share the advantages of cast iron covers: Use a circular cast iron covers, mainly on account of circular covers through its center of each diameter are the same length, so that if the covers are passing when the vehicle rolled on, because no matter how rolled on, it will be slightly wider than the diameter below the wellhead, the covers will not fall into the wellhead to go. Therefore, the actual total is rounded covers accounted for a large proportion. Want good quality ductile iron manhole cover, then select Gu Chang foundry in it! Buy five anti Covers | Chang in foundry (certified) | Luliang five anti covers provided by Gu Chang in foundry. Gu Chang-year foundry (www.sxcnzz.com) is Jinzhong, machining leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chang-year leadership in the foundry staff warmly welcome all inquiries negotiations to create Chang foundry in a better future.