... .and sell well in these countries.Our products have characteristics of waterproof, moisture-proof, fireproofing, heat-preventing, fading-proofing ... and other buildings as ceiling materials. It is a building material of new type, whose main raw material is gypsum. ... mainly used for partition and ceiling due to its advantages of lightness, waterproofing, fireproofing, soundproofing, warm-keeping and ready ...