Under Gu Chang ink in water polo foundry mold covers four characteristics: First, the manhole cover mold making easy: Just when you configure the manhole mold making good steel fibers and concrete into the mold, molding to shock, stripping cycle short supply ductile manhole covers, small investment, low labor intensity ductile covers companies, life is relatively long. Second, the manhole cover mold high compressive strength; three, according to different customers make the make and telephone; four, the production cost low ductile covers much money, easy procurement of raw materials. Gu Chang foundry located in Shanxi Province, Taigu County towns Hu Dong village crossing State Road 108, welcome to buy! Gu Chang Manhole covers ductile iron foundry in the test: 1. Appearance: No obvious casting defects. 2. Detection Manhole with a special tool diameter, the diameter of the control range covers size, depth 40mm, bolt holes use special inspection by the seizure. Gu Chang-year foundry welcome you soon! Address: Taigu County, State Road 108 towns Hu Dong village crossing. Ductile covers Grate, Heilongjiang ductile 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!