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qizhen0809
Audi Nut



Joined: Jun 28, 2016
Posts: 86

PostPosted: Tue May 11, 2021 6:50 am Reply with quote Back to top

Aluminum windows and doors
Energy-saving doors and windows on the market are mainly doors and windows, and they are also the most commonly recognized energy-saving doors and windows by consumers. What should you pay attention to when shopping for energy-saving doors and windows?

1. Look at the production quality. The decorative surface of doors and windows should not have obvious damage, which means that the protective film on the surface of doors and windows should not have scratches. There should be no obvious chromatic aberration on the colored surfaces of adjacent components on doors and windows. There should be no aluminum chips, burrs, oil spots or other stains on the surface of doors and windows, and there should be no spilled adhesive at the assembly joints.

2. Look at the material. Whether it is heat insulation and door and window profiles, the wall thickness of the main profile should be greater than 1.4mm; the color of the same aluminum alloy structural profile product should be the same, if the color difference is obvious, it is not suitable to purchase; check the surface of the aluminum alloy construction profile material, there should be no Dent or bulge;

3. Look at the assembly quality. Repeat the switch to see whether the switching force is too large; whether the sealing strip is firm; whether the hardware assembly is complete; whether the overlap of the casement window frame meets the requirements (the standard requires that the casement window is not less than 6mm, and the sliding window is not less than 8mm).

4. Check whether the glass is hollow structure glass.
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