With reliable mechanical properties, this wall panel can resist impact, hang, compress and transverse bend. The high strength doorframe has can either drill all kinds of the fittings into it or fittings can be nailed directly onto the doorframe. The compound panel has excellent sound and thermal insulation property, 60mm thickness panel can insulate 40dB noise, the thermal insulation factor is 0.707(m2/K)/w. This panel features super waterproof performance, preventing capillary water from raising less than 20mm after it soak underwater for 48 hours. Since the both faces of compound panel are fiberglass reinforced cement panel, they have excellent adherence properties for paint and other adhesives. The panel also features sound fireproof performance and engineering construction properties.