Laminate flooring is made up of 4 layers:

Top layer: It is named with wearing resistant layer.It is made up of AL2O3. AL2O3 is the
               material to make mademade diamond. So this material guarantee the quality of wearing ristace
               of laminate flooring.

Seconder layer: The second layer is made up of decorative paper,which offers a beautiful for the
                       surface. The color(design) can be various kinds of colors: oak, cherry, walnut,
                       beech, birch, bamboo, pine, mahogany, applewood, maple, ceramic tile, carpet, etc.
                       in 1 strip, 2 strips,3 strips and 5 stripes.

Third layer: The third layer is named with HDF core. This layer is made up of HDF. It is the key
                 part to support laminate flooring. There 2 colors for the HDF core: green and brown. The
                 plank wih green core is more damp resistant.

Fourth layer: The fourth layer is named with balance back layer. It is made up of balance back
                   paper. It is used to keep the plank straight. Also it is used to resist dampness.