Aluminum clad wood: aluminum alloy on the outside frame and genuine wood on the inside 1. New products, great market potential, 2. More corrosion resistant and whether resistant than genuine wood windows, because it is on the inside of the window frame, natural and elegant appearance as well as practicability 3. Durable, no fading for 50 years 4. Environmental-friendly and can be recycled 5. water-proof, air-tightness, wind-resistant, heat insulation and low U-value 6. Great craftwork and functional 7. Both commercial and residential, 8. Double tempered insulating glass and German hardware 9. 3-9 door leaves can be made 9. Windows and doors style can be customized, 10. Window style: sliding, casement (hinged), folding, tilt and turn, awning window. Windows and doors wrapped with pearl cotton being put in iron rack covered with carton and plastic film.