... , petroleum, chemical industry. The natural rock, ore and other raw materials, or other pools in the cupola melting kiln (temperature ... such as basalt, gabbro, dolomite, iron ore, bauxite as raw materials, high temperature melting, fibrosis, made of inorganic fibers. ... as blast furnace slag, phosphorus slag, fly ash as main raw material, after remelting, fibrosis, made of inorganic fibers. The two ...