The Rockwool sandwich panel is composed of surface material,core material and bottom material. 1.Its surface material is a metal layer made from AL-ZN alloy coated steel plate,with high temperature,waterproof once completed. 2.Its core material is the rock wool with fire performance class A,with heat preservation,fire prevention,moisture resistance, sound insulation, high hardness. 3.The bottom surface is an aluminum foil cloth/color steel plate protective layer that plays a role of heat insulation, heat preservation and moisture prevention.
