WPC board(hollow)is made from PVC/PE/PP, plant fibre and wood powder.the process of producing is that high efficiency conical double screw extruder to extrude,vacuum water box for model.many advantages is possessed by this kind of board. preventing moisty and spoil,bear the strong impact force,used many times and recycled,so this is a kind of green environmental protection material. PVC foaming board,foaming in the core,has characteristics smooth,high rigidity of surface,machining as wood. The two kinds of board,are widely used in decoration,construction and furniture manufacture