... to 30 million sqm/year Fuel: natural gas, oil, coal and so on Raw materials: natural gypsum (DSG, phosphor gypsum ... m2Gypsum board machine adopts the German company, Lafarge, the United States companies and domestic well-known enterprises50 million m2/y (thickness ... Fully automatic3. Drying system Using hot air for drying4. Fuel Coal, natural gas, heavy oil and diesel oil5. Main materialsConstruction ...