... wood-plastic composite ,50% wood fiber (baboo powder) +45%HDPE (PE) +5% additives.2.WPC is ideal for outdoor ,fence,handrail,garden/building decoration,flooring decking ... ,wall cladding,its advantage as followed:1).waterproof ,mildew resistant, never splinters2).UV-resistant,Low maintenance3).more durable4).elegant wood ... ).dimention stability9).unti-termite wpc extruded decking-outdoor