... Tech: Automatic rolling machines make the whole process of manufacture effective.4. Energy conservation, environmental protection ... kindergarten, model house for apartment, commercial building, remodeling of old structures, warehouse, steel structure house, workshop, work plant ... 8mmHeat Insulating MaterialPU(Polyurethane)Unit Weight of Core Material38-42KG/m3Thickness of Core Material40mm, 50mm, 75mm, ...