... (30,50,75,100,150,200mm)3. Usage: Interior and exterior partition on steel or concrete structure building, For new construction ... civilized, environmental, high efficiency construction.5. Key Specifications/Special Features:Wall thickness:30,50,75,100,150,200mmMaximum width: 1220mmLength: according ... buildingWaterproof and damp resistant,With fireproof feature Magnesium Oxide Light exterior Wall Panels