Refractories (Refractory material) can be divided into three categories according to refractoriness: (1) general refractories (Refractory material): refractoriness of 1580-1770 ℃. (2) Advanced refractories (Refractory material): refractoriness of 1770-2000 ℃. (3) super refractories (Refractory material): refractoriness higher than 2000 ℃. Structural performance refractories (Refractory material) include porosity, water absorption, air permeability, pore size distribution, bulk density, true density. They are evaluated refractories (Refractory material) an important indicator of quality. Refractories (Refractory material) of the structural properties of the materials used in its manufacturing process refractory materials and agents, including the type of raw materials, ratio, particle size and mixing, forming, drying and firing conditions are closely related. Wholesale refractories refractory manufacturers, Licheng District refractories, Refractories shangzhuang provided by Zhengzhou City shangzhuang Refractories Limited. Zhengzhou City shangzhuang Refractories Co. (www.yntjj.com.cn) (www.yntjj.com.cn) strong, credible, in Zhengzhou, Henan Province of charge, flux and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead shangzhuang Refractories and you hand into the brilliant, for a better future! You can also access (www.yntjj.com.cn/supply_details_45622900.html), for more information about the company.