Grey implicative inside collect, combine qu liu and endure to see have no lack of fashionable sense, suit the adornment of all sorts of styles is tie-in. Grey wood grain is pollution-free, give a person the feeling of returning to nature, regardless of the color or texture, are popular, grey board by easily processed wood, grey has a temperature regulation function, absorb the moisture and evaporation of wood when wet weather or when the temperature drops, the surface will not form the sweat, grey board insulation good, warm in winter and cool in the summer, this is because the natural properties of wood.