... 4.mostly Certificated Approved ITEMSDdMATERIAL50% wood fiber , 45% HDPE Plastic , 5 % Chemical additivesColor 9 Color availableSurface pattern Sand , ... , saving forest resourcesWPC (Wood plastic composite) material is made of Wood Fiber, Plastic and Few of chemical additivesThis type ... groove designing for slip resistance, can be used as floor board, be installed on the outdoor ground, trestle road ...