rock wool sandwich panel 1)Thickness: 0.2-1.0mm 2)Core Materials Option: Polystyrene(EPS), Polyurethane(PU), and Rockwool. ... 1000mm ,1200mm;2)Core Materials Options: Polystyrene(EPS), Polyurethane(PU), and Rockwool Thickness:50mm,75mm,100mm,150mm,200mm. the ... material congregates bearing, heat preservation and water resistance2.b)PU Sandwich Panel:Polyuthane Sandwich Panel *Polyurethane is the best ...