Taigu Chang share of ductile iron foundry iron or embedded floating surface with your iron should do the cleaning: On any surface free iron will rust and corrode the stainless steel is therefore necessary to remove IRES generally with dust. together removed and some adhesion strong manhole covers, must be embedded in iron processing. In addition to dust, the origin of many of the surface of iron manhole covers offer, including the use of ordinary carbon steel wire brush to clean and use previously carbon steel , used on low-alloy steel or cast iron sand, glass beads or other abrasive blasting process, or in the vicinity of the stainless steel parts and equipment for non-stainless steel products mentioned were grinding. lower course or hanging over the process if does not take measures to protect stainless steel wire rope, spreader and work surface iron easily embedded or stain the surface. Taigu Chang in ductile iron foundry covers, each product have been three program processing, it covers and Manhole The contact surface is zero, so that the two can be 100% seamless fit manhole covers bearing, to eliminate noise when the vehicle passes. In the new five anti covers design uses a new design concept, so that the vehicle through the covers, manhole covers specification covers not hit, but the first hit at the edge of Manhole prevent covers the whole sink, an effective solution to the city The covers around the "bad side" problem. Ductile iron manhole covers Heilongjiang covers installation _ _ Chang in foundry by Taigu Chang 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!