... thickness:25-200mm 4.Density: 40kg/m3-200kg/m3 Rockwool boardThermal insulation rock wool board is a board product with certain strength ... and sound proof in partition wall and wall curtain, thermal insulation in roof, retaining structure, floor heating system, industrial kiln, ... oven, large sized tank, as well as thermal insulation and fire proof of vessels, etc.Size:1200*600mm,1220 ...