1. Adopt natural timber, such as basswood, pine, cedar, poplar, . They carry through finely process, for example, dehydration, degreasing, finger joint, integrated, deformed performance.

2. Good watertightness performance, air permeability performance, noise insulation and heat resistant property.

3. Louver: 2.5" width(1cm thickness), 3.5" width(1cm thickness)

4. We can make this as the special size you provide to us.