... 1150mm density: 120kg/m3 Crest height:40mm Thickness for rockwool: 50mm-200mmThickness for steel sheet: 0.3mm-0.6mm ... 1)rockwool sandwich panels2)light weight fireproof3)waterproof and heat insulation4 ... sheet), matchboard, corrugated sandwich panelDetailed Product Description Model No.Rockwool panelColorstandard color: red, blue, white greyspecial color: according to ...