It is made of basswood with high quality, processed through many production courses like heating, bleaching, drying, board composing, slicing, grindng, sorting, and painting and so on, and it is the product of environment protection good for health.
Delicate and light shade, intensive lines in nature beauty painted by high class environment protecting paint that is of color fast and healthy tough and adjustable vanes making the style to simple natural return and better shade processes against mould, damp, of environment protection.