Rock wool sandwich panel is made from rock wool as the core of raw materials. Rock wool sandwich panel full play to the unique properties of rock wool core material in fire protection, thermal insulation, acoustic insulation, and so has a significant effect. Widely used in steel plants, simple activities room roof, wall, ceiling and air clean room partition. Its weak is strength not strong enough, however it is suitable for the roof and wall of the steel structure workshop and the simple movable room, and the ceiling and partition of the air clean room. Rock wool sandwich board fully exerts the unique properties of rock wool core material, and has remarkable effect in fire protection, insulation and sound insulation, sound absorption and sound insulation. 1, Excellent fire resistance: As its raw material is rock wool ,it has good fireproof performance. The test shows that its fire resistance temperature can reach upto 1000 degree. Rock wool sandwich panels have been tested by GLOROANO S.P.A, an authoritative inspection institution in Italy. According to the standards of International Standardization Organization (ISO), British BS and German DIN, the rock wool sandwich panels meet the requirements of fire protection standards, M.I14/09/61 91 and D.M.30/11/83. 2)Good thermal insulation: its insulation is according to its thermal conductivity at 0.043W/� corresponding the thickness of rock wool 3) The effect of sound absorption and heat insulation is remarkable. Sound insulation: rock wool sandwich panels have a significant reduction in noise transmission, especially for places where a designated flight is passed. In addition, after using the roof of the rock wool roof, the rain and hail impact on the roof plate of the building, causing the sound of the indoor sound and also obviously weakened. According to ISO 717/82 and UNI 8270/7 standard, Density of 120kg/m³ rock wool as core material, the sound insulation effect can reach RW=29-30 dB Sound absorption: rock wool sandwich panels have excellent attraction at the same time, which can absorb sound in a wide range of frequencies. According to the ISO 35/85 standard The sound absorption performance level of the rock wool sandwich panel reaches DELTA LA=15.7dB (A)..