... building materials, petroleum, chemical industry. The natural rock, ore and other raw materials, or other pools in the cupola ... is a natural rock such as basalt, gabbro, dolomite, iron ore, bauxite as raw materials, high temperature melting, fibrosis, made ... variety of products, should be used for construction and industrial equipment, pipes, furnace insulation, fireproofing, acoustic, seismic, etc.. ...