1.Made by MgO,MgSO4,patent product 2.fireproof,waterproof 3.100% free of asbestos Soovee sanded magnesium oxide board is our hot product,It is in accordance with enterprise'sstandard No.q/xtjc001-2009 and has property right of autonomous knowledge.It's 100% free of asbestos,formaldehyde,benezene and any other harmful substances.It's green,fireproof,waterproof,sound insulation,mildew resistance, ...