... ,enviromental-protective.good for human SPECIFICATIONGypsum panel, Ceiling board, Drywall, Paper faced Gypsum board, Building materiala).Main material: gypsumb).for wall partition ... plaster boards of high quality ,as they are made of gypsum powder of high natural purity mixed with glass fiber ,starch ... , America ,Europe and Asia, so many countries in the world. gypsum panel