1. Look at the material

The main materials used in doors and windows generally include three aspects: outer frame profiles, glass, and hardware. When the owner buys products, he often pays more attention to the thickness of the profile and glass, but the requirements for hardware are not very high, which is not comprehensive.

In fact, the country’s requirements for doors and windows have certain standards, and the thickness, strength and oxide film of the profiles used in high-quality doors and windows can generally meet the national standards. Tempered glass is better than ordinary glass, if the safety and durability of doors and windows are considered, stainless steel hardware accessories (such as screws, hinges, etc.) are better than aluminum accessories, you know, door and window damage is usually from the door and window accessories to start yo!

2. Look at the processing

With good materials, the next step is the processing of doors and windows. Because the technical content of doors and windows is not high, the degree of mechanization is not high at present, most of them also rely on the manual operation of installers, and it is very important to strengthen the proficiency and product awareness of operators in the production process, which requires operators to have a good sense of product quality.

High-quality doors and windows are finely processed, the tangential lines are smooth, the angle is consistent, there should be no more obvious gaps in the splicing process, the sealing performance is good, and the switch is smooth. If the processing is unqualified, there will be a problem with the nature of the seal, not only the leakage of wind and rain, but also under the action of strong wind and large external forces, the glass will burst and fall off, thus causing the owner to lose property and even hurt people.

3. Look at the appearance

Owners buy door and window products, usually pay attention to the appearance of the product and the decorative pattern of the glass, and often despise the door and window glass surface film, door and window glass even if the use of tempered glass, there is also a possibility of bursting, door and window glass film, with the ability to prevent harmful ultraviolet rays into the room, play a role in heat insulation, explosion-proof, safety protection effect greatly improved. Therefore, when purchasing door and window products, it is necessary to compare similar products.

4. Look at the price

Because the price of doors and windows is directly related to the price of materials in the market, but in general, the price of doors and windows in a certain period is relatively stable, in general, in the same grade, the price of high-quality doors and windows is 30% higher than that of inferior doors and windows products, inferior doors and windows are usually made of extrusion or recast containing a large number of impurities, whether it is from tensile strength or yield are greatly reduced, such doors and windows are very unsafe, so the owner in the purchase of products tens of millions Don’t be cheap for a while and despise the personal safety of yourself and others.

5. Look at the performance

The performance of doors and windows is also different due to the different range of use, but usually the following aspects should be considered: strength, which is mainly reflected in the selection of door and window profiles, whether it can withstand ultra-high pressure; Airtightness is mainly reflected in the structure of doors and windows, whether the inner and outer frame structures of doors and windows are tight, and whether the doors and windows are tight.