By automatic continuous sandwich composite molding machine, the outer layer is a high-strength material (eg, color galvanized steel, stainless steel), rock wool sandwich panel, the inner layer is a lightweight insulation material (flame retardant polystyrene, mining cotton, polyurethane, etc.) by automatic molding machine, with two high-strength adhesive bonding, pressurized, trimming, notching, blanking from sheet metal. Sandwich only has good insulation, thermal insulation and moisture and other physical properties, but also has good mechanical properties of shear, the composite rock wool sandwich panels, a contemporary popular because of new building materials. Please use rock wool fire retardant plate (glass wool) color steel sandwich. Color can be environmentally friendly 100% recycled material, rock wool sandwich panel manufacturers, truly green pollution-free. All energy-efficient use of energy-saving wall, buy wool sandwich panels, insulation, heat insulation, sound insulation, up to 50% energy saving standards. Light: square weighing less than 14kg can be sufficiently reduced structural loads, reduce structural costs.