Rock wool is a kind of insulation material, preferred by insulation engineering companies because of its excellent properties of heat, sound insulation and fire resistance. Its working temperature reaches 650 ℃, which is significant in building insulation and industrial insulation applications. Raw material to produce rock wool is basalt stones. After melting with high temperature, the molten stone liquid will be spinned to fibers. Fibers will be collected and combined with binders to produce rock wool products. Our equipment for rock wool production represents the most advanced technology in this field of China. We led in the setting up of Chinese Industry Standard in the field of cupola furnace and rock wool machinery.