PRODUCT DESCRIPTION: Composition: hand gypsum rock wool sandwich board, using high-quality color coated steel plate as the surface layer, core material using gypsum board, rock wool, around the iron keel frame or aluminum alloy cold pull type female and male mouth frame, handmade. Advantages: good fire resistance, high strength, high sound insulation. Application: Widely used in food, pharmaceutical, electronic, scientific research, aerospace, medical and other industries of plant, laboratory and various places functional partition and ceiling.