In recent years, a large number of development and construction of high-grade construction for new energy-saving environmentally friendly building materials to broaden the market space, including all types of building hardware products. With door and window hardware, for example, aluminum extrusions, aluminum profiles, especially energy-saving and environmental protection, will in the future in new construction and renovation, occupy an increasingly important position. From this year's exhibitors door hardware products, the proportion of new products than in previous years has been significantly increased. In recent years, Chinese aluminum extrusions industry developed rapidly, forming a formal business system, the company's products, technical quality, sales and service has improved a lot, and have a considerable strength, has been able to meet the housing needs of the body . On the export side, has also been a global leader. " It is understood that, compared with conventional aluminum profiles aluminum, steel profiles, with tightness, and not aging advantages, and fire resistance, high melting point. Energy saving building materials, high-grade building developers are being favored, because the industry to develop, companies must have innovation, we must continue to create a better product, which is an irreversible trend.