Rock wool sandwich panel, external material is PPGI metal plate of 0.3-0.7mm The core material is polyurethane with a density of 60-120kg/m3. Size: Length can be customized, width 950mm/1150mm optional, thickness 50-200mm optional. Advantages: Excellent fire performance, good thermal insulation, easy installation of snap-fit structure, long service life Uses: warehouses, factory exterior walls, partition walls, etc.