Aluminum closed balcony outlook analysis of the industry! 20 years of the 21st century, China's housing construction investment will continue to grow by 7 percent increment in order to housing as the main real estate will become the pillar industry of the national economy. Currently wood aluminum sun room windows and doors of urban construction market demand has reached about 120 million m2, an increase of more than double in 1978, China has become the largest production country of building windows and doors, huge market potential. National building energy saving in accordance with national regulations developed by the Conference of the EEB 'ninety-five' plan and the 2010 plan, determined to reach the goal of 50% energy saving building 'ninety-five', with the construction of new energy-saving standards in China's major cities and gradually implementation sun room prices, energy-efficient windows and doors in the Chinese market will continue to increase. Market demand continues to expand. How much is a flat closed balcony Xi'an - bridge aluminum bridge aluminum material durable custom sun room, and composite structures also can block heat transfer sun room, closed balcony is an ideal choice. But for how much money a square knot closed balcony for people who choose materials as aluminum bridge closed balcony of the material will be spending a lot of renovation budget. Bridge aluminum material because the price is relatively expensive, and long production cycle of non-standard window type, weight and large, at the time of installation requirements are higher than other materials. Villa sun room, sun room Yulin, Xi'an doors yet still provided by the Xi'an Door. Xi'an is still Door (www.sxzsmc.com) strong, credible, in Xi'an steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xi'an yet into the brilliant windows and you work for a better future!