Ductile iron pipes is made by adding magnesium, calcium and other alkaline earth metals or rare metals to the raw materials of ordinary cast iron pipes.
Are our key product, this technology is to market the inner and outer surface of metal pipes and equipment dipped with plastic and rubber through unique formulation and advanced plastic and rubber dipping technology so as to manufacture steel composite pi
Fibreglass/Fiberglass Reinforced Plastic (FRP) or Glass Fiber Reinforced Plastic (GRP) is composed of thermosetting plastics and reinforce fiberglass, greater then that of steel products and aluminum products in specific tenacity.
Artificial graphite materials have been successfully used in pressure casting of nonferrous metals. For example, zinc-alloy and copper-alloy castings molds are made of pressure graphite casting molds. The artificial graphite materials have been used in au