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 covers municipal covers sales, then select Gu Chang foundry in it! Cast iron covers the brick masonry, should determine its inner diameter or length * width, radius (such as by real kind of construction would be best), can also be implemented in accordance with the appropriate reference standard Design Institute covers sizes. Be sure to pay attention to the inner diameter of the puzzle wellhead should match the inside diameter of the municipal wells Bi covers covers casting, covers should be installed flush with the road surface. Concrete or asphalt laying the wells after casting seat, opened the lid should be cleaned to prevent mortar or asphalt will pour inspection covers and seat into one, so as not to affect the future open. Gu Chang foundry specializing in the production of ductile iron manhole covers, our reliable quality and good after-sales service of municipal wells factory, so our credibility municipal wells known outside the industry, so our products are in short supply, the majority of users praise, we The company will continue under the guidance of the spirit and dedication to our customers to provide better quality products. Municipal covers casting, foundry Chang years (certified), Shuozhou municipal wells 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.