Rock wool products are made of high-quality natural rock as the main raw material, such as basalt, dolomite and other rock materials, adding appropriate amount of binder, smelting at high temperature, centrifugating by high-speed centrifugation into fibers by four-roller centrifuge, and then solidification . It is collected by a cotton collecting machine, placed in cotton, pleated, solidified and cut to form products of different specifications. It has non-combustible properties, low thermal conductivity, sound insulation and good chemical stability. This product is widely used in exterior walls, metallurgy, electric power, chemical industry, construction, shipbuilding etc. It is an ideal material that is economical and has good thermal insulation effect. Water-repellent rock wool products have a water-repellent rate of over 98%. Because they are free of fluorine and chlorine, they have no corrosive effect on equipment. The products shape include board,blanket,stick,pipe etc