Rock wool board

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 board: 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.

the company supply rock wool board  and  polystyrene sandwich panel.

Rock wool board (water-proof rock wool board, high strength rock wool board) They have three layers, Separately for steel sheet