Aluminum alloy insulated energy-saving doors and windows

　　The national building energy conservation policy requires that from 1996 to 2000, newly designed heating residential buildings should achieve a 50% reduction in energy consumption compared to the local universal design from 1980 to 1981; Starting from 2005, newly constructed residential buildings with heating systems should achieve an additional 30% energy savings on this basis; New heating public buildings should achieve energy savings of 50% by the year 2000, and an additional 30% by 2010 Heating areas, for areas with poor thermal environment and high energy consumption, the energy-saving renovation of buildings has been carried out in key cities since 2000, and has been widely implemented in cities across the country since 2005. By 2010, it has been widely promoted in key cities.