Grate composite cold extrusion method of cold extrusion mixing short fiber pulp is added, stir the sale of municipal rainwater grate, the fiber-containing slurry after mixing into the existing machinery that is improved by brick extruder hopper; release agent coated composite cavity mold on the grate, then mix the slurry is extruded from the extruder, so it fills the mold cavity, and then extruded. Cured for 5 to 10 minutes to remove the finished product after extrusion. It was added to the formulation of short fibers, while use of an extruder to implement improvements, making it suitable for a slurry of magnesium extrusion mixing requirements, thus beyond traditional molding process, so that a composite synthetic magnesite Grate greatly improved yield municipal rainwater grate, and its strength, stiffness and impact resistance and other indicators also increased accordingly. Taigu Chang in foundry was founded in 2006, is a new modern and dynamic enterprises. Since the construction of ongoing efforts to expand the municipal stormwater grate price, is to become a professional production of ductile iron covers enterprises with annual production capacity of 5,000 tons of municipal stormwater grate size, it is now expanding annual production capacity of 10,000 tons. Road, water points sinks, crosswalk upstream of the upstream units along the street entrance, neighborhood by surface runoff or courtyard, etc. shall be provided with rain water outlet port. Ease of water in low-lying sections of road should be based on the need to appropriately increase gullies. At this point, we need rain grate. Taigu Chang foundry specializing in the production of rain grate and ductile covers, welcome to order! Municipal stormwater grate size, Chang-year foundry (certification), Shuozhou municipal stormwater grate on by Taigu Chang foundry. Taigu Chang in foundry (www.sxcnzz.com) is Jinzhong, machining leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Chang in foundry leadership with the staff warmly welcome all inquiries negotiations to create Chang foundry in a better future.