... to 30 million sqm/year Fuel: natural gas, oil, coal and so on Raw materials: natural gypsum (DSG, phosphor gypsum), ... cardboard, foaming agent, glass fiber, accelerator and so on1. Capacity2 million m2Gypsum board machine adopts the German company, Lafarge, the ... system Using hot air for drying4. Fuel Coal, natural gas, heavy oil and diesel oil5. Main materialsConstruction gypsum powder, modified ...