The aluminum door window industry can say is: state-owned enterprise, military industry open first, outside, joint venture, is currently some fresh blood to the private enterprise to hold. Early batch of state-owned enterprise Beijing door Co., Shanghai Windows factory, Shanghai glass machinery factory, guangzhou aluminum company with rich technical foundation of the military enterprise, initiated China's aluminum doors and Windows manufacturing precedent. Coastal economic development, d.c. attracted foreign capital and joint venture enterprise. Foreign capital enterprise entering China, promoted the aluminum door window industry technology revolution, the industry development of the industry with role. Meanwhile, foreign enterprises to actively promote our country's economy to a market operation mechanism of transformation, become operational mechanism transformation and the concept of transformation catalyst. With China's construction of the ruins