Detail introduction: The Rockwool Sandwich Panel production process adopts the colored steel plate as surface board and the core materials is the self-extinguishing closed cell rock wool, it is kind of high –strength composited building materials, and it was formed in the automated continuous molding machine, by combining the pressed colored steel with high strength adhesives. Rockwool sandwich panels have the excellent fire performance because the color steel plate and rock wool materials are fireproof best.