Comparison with similar resin cast iron covers covers: First, on the road with heavy traffic wholesale electricity covers, generally will choose cast iron manhole covers, 40 tons load, but also to do some resin covers 25 tons of load, and the price is relatively cheap iron. But the cast iron covers relatively safe. Secondly, the iron easily stolen, lost big. There is a cast iron manhole covers and sometimes drove past have great sound, but relatively safe. Finally, if the resin is relatively much smaller. And like green belt covers electricity pictures, sidewalk covers electricity prices, it needs to withstand the pressure is not great, the cost of the big selection of cast iron. Gu Chang-year foundry founded in 2006, is a new modern and dynamic enterprises. Since the construction of ongoing efforts to grow, is to become a professional production of ductile iron covers the company, with annual production capacity of 5,000 tons, is being expanded with an annual output of 10,000 tons. Gu Chang share with you in foundry cast iron covers installation considerations when: 1, in order to enhance Manhole compressive strength, increase Manhole located in the bottom of the area, the installation Manhole, Manhole well inner diameter no larger than the inside diameter. 2, the structure of the body sets wells must be brick structure, the balance must be strong, after the formation of the structure of the force, and the grate before installation Manhole seat. 3, the installation of electricity grate seat covers, grates shall vacant seat underside. 4. Place the grate Manhole and seat, should be placed at the bottom of the concrete Manhole and grate seat is not solidified in place, and forced vibration compaction or percussion Manhole, Manhole so closely integrated with the concrete to increase Manhole and grate base station and well body contact area. 5, load after product installation shall not exceed the carrying capacity of the product prescribed. Gu Chang-year foundry Address: Taigu County, State Road 108 towns Hu Dong village crossing. Electricity covers manufacturers, Changzhi electricity covers, Chang-year foundry provided by Gu Chang in foundry. Gu Chang-year foundry (www.sxcnzz.com) strong, credible, in Jinzhong machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chang and you work in the foundry into the brilliant, for a better future!