Wood-plastic composite products is an environmental material, which is made from polyolefin plastic and fiber, such as straw, wood dust, rice ban. By special processing technic, WPC would has many advantages, such as rot-free, constant condition and color, no cracking and maintenance free. It’s an idea material to replace conventional wood and plastic. It can be used to produce railings, ootpath, outdoor furniture, door, and other furnitures. It has a wide application.