rock wool sandwich panel.three layers, respectively is steel sheet, Polystyrene foam plastic, steel sheet

the company supply rock wool sandwich panel and polystyrene sandwich panel

Rock wool sandwich panel: They all have three layers, upper layer is steel sheet, the inner layer is  rock wool sandwich, the bottom layer is also steel sheet. the fireproofing property is very excellent.polystyrene sandwich panel: They all have three layers, upper layer is steel sheet, the inner layer is Polystyrene foam plastic, the bottom layer is also steel sheet. these materials will be applied with high strength binder to form a high-efficiency compound building material.

rock wool sandwich panel