1. adopting high-polymer as outer decors: PVC, PP, ARS, antisepsis and antibiosis; 2.simple to install and compose, easy to maintain and repair, durable to wear; 3. inner-core designed professionally with high-quality aluminum alloy, so fastening and stable; 4.protecting wall body, dash-proof, anti-dumping, with outer beautiful looking; 5.luxury-style, enjoyable color-compose, suitable for high level spots' using.