Window and door’s quality depend on all the window and door hardware accessories, so we must pay attention to every making part in a project, especially can not despise to the window and door hardware accessories, so we can say that hardware accessories is the heart of the window and door. Window and door is the part of the construction, it will make influences to construction’s energy-saving and improve window and door’s heat preservation performance.
Construction’s energy consumption:
1. Our country’s construction energy consumption is a quarter of all energy consumption.
2. Construction using energy consumption energy consumption is a half of the construction energy consumption.
3. Keep warm and air-condition energy consumption is a half of the construction using energy consumption.
4.  In fact, window and door area is more than 20% of all the construction area.
  Many energy are wasted by window and door, so our country advocates energy-saving window and door. And in that, window and door hardware accessories play a important role.
  1.Easy operation and single point control.
  2. Standard and syatem.
  3.It is allowed to change.
  4.The load-bearing is strong.
  5.The safe is high.
  6.It can be used in many ways.
  7. High quality.