Ying-kou Cheng Long Industry Co.Ltd is a high and new enterprise, It is one multiple substance for science,industry,marketing, import and export,real estate etc. Mining processing factory has combined with several domestic & foreign academy well-known for the research of high technology, bonder refractory products,we have already developed DKM-8 series top-grade refractory products and gain the national patent. Now the product has already been put into the international market. Our company is having advanced production technology and smelting equipments, and having reliable quality assurance system,capabil- ity in developing and producing high quality refractory products.