PRODUCT DESCRIPTION: Manual double-sided glass magnesia cotton sandwich panel, using high-quality color coated steel plate as the surface layer, with galvanized steel strip for edge sealing and reinforcement, with moisture-proof glass magnesia board as the core layer, rock wool as the inner core layer, made by pressure, heating and other processes, good sealing performance, high fire grade. This product construction installation is convenient and quick, the comprehensive benefit is very remarkable. Mainly used in electronic (industrial plant) medicine (purification room) chemical (fire prevention workshop) Sheet thickness：50 mm、55mm、60mm、75mm、100mm Insulation：1.8 kcal/m2/h/℃ Fire resistance：Class A Composition：steel plate + glass magnesium + rock wool + glass magnesium + steel plate, made by hand craft. Advantage：good fire resistance, high sound insulation performance. Application：widely used in food, medicine, electronics, scientific research, aerospace, medicine and other industries of plant, laboratory and various places of partition, ceiling