Rock wool products are made of high-quality natural basalt ore and dolomite as the main raw materials. They are melted at high temperature, spun into fibers by high-speed centrifugation, and made into plates with certain strength by adding a small amount of binder through advanced production technology and heat curing. The outer surface can be covered with glass fiber cloth or aluminum foil glass fiber cloth according to customer needs. A60 rock wool must meet the two conditions of reaching a fire resistance limit of 1 hour and a fire rating of Class A.
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