On 16th of June 2011, a meeting that is called “Publicity and Promotion for National Public Building Energy Efficiency Standards and Technology” was hold by the chinese government.

The Meeting Theme

With global warming, the energy conservation and emission reduction also has become a world policy of the all governments.

Energy-saving in building doors & windows is accounting for an important part of building energy-saving. It is calculated that heat loss through the common metal doors & windows account for about 40% of all heat loss of building, and the thermal insulation doors ＆ windows can save 30 to 50% energy consumption than common metal ones. So it is a important method to improve the thermal insulation and air-tightness of doors & windows. With the continuous application of plastic doors and windows in recent years and improvement of people's consumption level, the problem about plastic doors ＆ windows has been paid more attention. For example, the plastic doors ＆ windows don’t meet with the requirements for high buildings’ doors wind-resist and for bright ＆ comfortable buildings. Due to themselves structures, the plastic doors ＆ windows have many disadvantages, such as deformation, bend and sag, so as to affect the practical performance of doors. So, people are looking forward to a more excellent, more elegant, and a type of new energy-saving door ＆ window to overcome the existing shortcomings, and as a new generation of building doors ＆ windows, the aluminum-plastic co-extrusion technology is developing fast with its excellent quality, appropriate price.