Aluminum alloy door and window pulley procurement guidance

1. Material: The material of aluminum alloy door and window pulley should be high-quality aluminum alloy, with good corrosion resistance and wear resistance.

2. Size: The size of the pulley should match the size of the doors and Windows. A pulley that is too large or too small can cause doors and Windows to not slide properly.

3. Brand: Choose well-known brand pulley, quality is more guaranteed. You can find out the word of mouth and evaluation of each brand by searching the Internet and asking professionals.

4. Function: Select pulleys with different functions according to actual needs, such as pulleys with anti-noise design and pulleys with automatic adjustment function.

5. Price: Under the premise of ensuring quality, you can choose the right pulley according to your budget. However, it is not recommended to go overboard with low prices, as quality may not be guaranteed.

6. Installation: Consider whether the installation of the pulley is simple and whether it requires professional installation. If you can install it yourself, you can save part of the cost.

7. After-sales service: Understand the manufacturer's after-sales service, such as warranty period, maintenance services, etc. Good after-sales service can provide timely solutions when pulley problems occur.

8. Environmental protection: Choose pulleys that meet environmental protection standards and will not cause pollution to the environment.