(Image Source: Today's official website of doors and windows, invasion and deletion)
1. Look at the quality of the original aluminum profile
why do we talk about aluminum alloy profiles first? Because the most basic of a good door and window is aluminum alloy profile and glass, now let's talk about aluminum alloy profile first. The color of the cut position of good aluminum alloy profile is silvery white, no matter the texture and color are very uniform, otherwise, if the color of the cut is black or other colors, it is possible that some of the aluminum alloy doors and windows manufacturers are made of aluminum waste or other materials.
2. Good and bad tempered glass
the main combination of doors and windows is aluminum alloy profiles and tempered glass. If tempered glass is defective, it is uneven on the surface, there are water lines and the light transmittance is not good. It is not clear after a layer of view. Good tempered glass has good light transmittance, and there is no uneven water lines on the surface.
3. Brand identification
aluminum alloy doors and windows manufacturers with brands will identify their own company names in their products, and have their own trademarks in glass and packaging. In order to buy real aluminum alloy products, we recommend that you purchase directly at the store and distribution point, or contact the staff to serve you.
4. The price is proportional to the quality
when buying aluminum alloy doors and windows, the first choice is the doors and windows that are suitable for you and of good quality, then you need to polish your eyes, don't buy doors and windows with poor quality because of the low price. What you need to know is that the price is proportional to the quality!