Rockwool core material: the density of 120kg / m & sup3; rockwool block interleaving laying its fiber direction perpendicular to the sandwich, the lower surface, and closely connected to enrich the entire vertical and horizontal surfaces of sandwich panels. And wool and, through high-strength adhesive foaming agent to form an integrated roof insulation between the lower steel wool board between rockwool block, sophisticated production process to ensure high-density rock wool insulation body and the metal plate inside wall It can produce a strong adhesive force between ordinary rock wool insulation board, so that the rock wool sandwich panel has a good stiffness. Sealing performance: rock wool sandwich panel polyurethane seal on both sides of the assembly line production process, to take advantage of the excellent water resistance of polyurethane products overcome the shortcomings of wool easy-absorbent deliquescence, in the physical properties of effectively extending the life of the product. Beautiful performance: interface with European standards for the design, the appearance of smooth rounded, smooth and beautiful wall insulation board rockwool board, joints tight, reliable strength, effectively prevent cold bridges.