... -protective.good for human SPECIFICATIONGypsum board, Ceiling board, Drywall, Paper faced Gypsum board, Building materiala).Main material: gypsumb).for wall ... 5,12.7,13,15 and 15.9mmLinyi Weicheng Metal Products Co.,Ltd also produces plaster boards of high quality ,as they ... high natural purity mixed with glass fiber ,starch, then paper-faced, because their light weight ,convenient for construction, no ...