Place of Origin:Hebei, China (Mainland) Fireproof Grade:class A Type: Heat Insulation Materials Mineral wool raw material: rock stone Thermal conductivity: 0.034-0.042w/mk Temperature: 400 Grade of combustibility: Non-combustible Grade A1 Color: yellow,black,pink.white hydrophobicity: â?¥98% density(kg/m3): 60-200kg/m3 width(m): 0.6m 1.2m Package: PP and PE bags