... and wall are two types of widely used in a fireproof, sound insulation, thermal insulation requirements of industrial and civil ... , Color steel sheetThicknessColor steel sheet: 0.4-0.8mm Rockwool board: 50mm 75mm 100mmDensity120kg/m3ColorOcean blue, tephrosious and red ... house, workshop, work plant, airport, cold storage, mobile house. Rockwool Sandwich panel manufacturer ,for roof and wall,fireproof