a, Energy-saving exterior wall panel b, Got CE,SGS,ISO certification c, Obtained patents d, 20 years fade & agein Energy-saving interior wall decorative panelextruded under high temperature and pressure ,whose main material (about 60%) is natural wood or bamboo powder,mixed with plastic ,mainly polyvinyl chloride or polyethylene (about 30%) ,added necessary chemical additives ,such vesicant , ...