Construction quality gullies should meet the following requirements: 1) should be pointing straight gullies along the inner wall, solid, not leak hook, off; 2) Well box, well grate should be complete, lossless wholesale municipal wells, install a smooth, firm; 3) Manhole backfill to meet the requirements of the road bed; 4) manifolds should shun direct municipal wells standard weight, not a wrong port, reverse slope, the water in the recessed pocket. To complete undamaged pipe ends flush with the wall; 5) the inner wall of the requirements of gullies pointing puree. 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-year foundry to introduce you: the main channel rainwater and inspection wells, manholes attached rain, rain grate construction sequence is: 1, before the start laying the roadbed main channel rainwater, masonry manholes; 2, Cushion road reaches the bottom cushion elevation rain municipal wells, water wells began masonry. And with the progress of the subgrade layers of cushion to adjust to the appropriate level increased inspection wells: 3, paved road surface before municipal covers manufacturers, completed plastering water wells, install stormwater grates, installing manholes sit covers. Coordination elevation and road construction unit, to ensure that after the completion of the road works, rainwater catchment grate normal play function, elevation and road inspection covers coordination. Jincheng municipal government covers covers manufacturers _ _ Chang in 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!