The wood-plastic composites combin the wood ,plastic ,and another special material-calcium, make use of all their advantage, put the pvc into the surface of the wpc-board with the high tempreture directly. So it looks very well ,like the nature wood vein. And it has some other advantages such as water and corrosion resistant, alkali-proof, moth-proof, stainable and malleable, low pollution risk and odor-free.