Rock Wool Sandwich Panel Good-resistance, Noise-absorbing, Heat-insulatedfast Rockwool density 120 kg/ ... mm thick for choice Color:as request Wall panel :950 ,1000,1150,1200 Roof panel :950,960, 1050 Product features:1. advantages ... ,heat-insulatedfast and convenient construction.2. fire-resistance rating:mineral wool rock is A,Pu is B. Applicaion:Widely used for steel ...