When you select cast iron cover should be on what basis? Is based on the amount of load, divided into the following three: First, light: 25 t / m2; the car, pedestrians Park campus housing, parks cable trench cover, underground parking and other kitchen. Second, heavy: 70 t / m2; 20 tons of plant automobile traffic, road gutter cover general portfolio, the main road street, parking lots and streets. Third, the super-heavy: 140 t / m2; Shanxi security covers the price of heavy trailers, container trucks brands Shanxi security covers, cranes and aircraft traffic trunk road, large parking lot, Shanxi mine security covers, docks and airports. Taigu County in Shanxi Province, Chang Inoue foundry is located in the hometown - gold Taigu treasure. 108 State Road, Taigu, Jinzhong City, Shanxi Province, Hu village Magang industrial park, east of long high-speed, high-speed north Tongyu Qi convenient transportation and accessible. Each cast iron covers are made of heat treatment in the Arts and heated in the solid state range, three-step process heat and cooling components. Because of different heating temperature, holding time and cooling rate, the matrix structure obtained is also different, therefore, cast iron production in addition to appropriate adjustments to the chemical composition in order to control common matrix structure, the heat treatment is to control and improve the tomb of body tissue to improve the performance of cast iron A change to way. Taigu County in Shanxi Province, Chang Inoue foundry is located in the hometown - gold Taigu treasure. 108 State Road, Taigu, Jinzhong City, Shanxi Province, Hu village Magang industrial park, east of long high-speed, high-speed north Tongyu Qi convenient transportation and accessible. Shanxi security covers manufacture | Shanxi security covers | Chang on by Taigu Chang foundry in foundry. Taigu Chang in foundry (www.sxcnzz.com) strong, credible, in Jinzhong machining industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement of innovative ideas will lead foundry Chang into the brilliant and you work for a better future!