Refractories Co., Ltd., Zhengzhou City shangzhuang understand neutral alumina refractories, chromium oxide or carbon as a main ingredient. Alumina containing more than 95% of corundum article is a wider use of high quality refractory material. Chromium oxide as the main component of the corrosion resistance of chromium refractory brick slag sales, but poor thermal shock resistance, high temperature and low load deformation temperature. Carbonaceous refractory carbon bricks, graphite products and silicon carbide products, its low coefficient of thermal expansion, high thermal conductivity refractory, good thermal shock resistance, high temperature strength, resistance to acid and salt erosion, especially in weak acid has good resistance to alkali, metal and slag from wetting, light. Widely used as a high-temperature furnace lining material, also used in petroleum, chemical lined autoclave. Basic refractory magnesia, calcium oxide as the main component, commonly used is brick. Magnesium containing more than 80% to 85% of the lowest refractory brick of basic slag and iron slag has good resistance, high refractoriness than clay and brick. Mainly used on open hearth, basic oxygen furnace, furnace, non-ferrous metal smelting equipment, and some high-temperature equipment. Shangzhuang Refractories Co., Ltd., Zhengzhou City, to introduce basic refractories magnesium oxide, calcium oxide as the main component, the main products are brick, magnesite-chrome brick, brick, zirconium, magnesium, Mg-Al bricks, refractories wholesale, Mg, Al tip Spar brick, brick, magnesium, calcium, dolomite brick and newly developed iron magnesium spinel brick. Containing magnesium oxide (Mgo) more than 80% of the firebrick called brick, according to the index can be divided into many grades grades, brick alkaline slag and iron slag has good resistance, high refractoriness than clay and brick . Mainly used on open hearth, basic oxygen furnace, furnace, non-ferrous metal smelting equipment and glass industries as well as some of the high-temperature equipment. Magnesia-chrome brick for more basic slag resistance and thermal shock resistance is also much higher than brick, so the more widely, magnesia-chrome brick in steel smelting and non-ferrous metallurgy industry has almost replace brick . Refractory lowest | shangzhuang Refractories (certified) | Hong Kong Refractories by shangzhuang Refractories Co., Ltd., Zhengzhou City. Zhengzhou City shangzhuang Refractories Co. (www.yntjj.com.cn) is Zhengzhou, charge, flux leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In shangzhuang refractory leadership with the staff warmly welcome all inquiries negotiations to create shangzhuang Refractories a better future.