Aluminum alloy doors and windows and plastic steel doors and windows each have their own advantages and disadvantages. Which one is better depends on your specific needs and preferences.

Advantages of aluminum alloy doors and windows:

1. High strength: Broken bridge aluminum is sturdy, can withstand large wind pressure, and is not easy to deform.

2. Good weather resistance: It has excellent anti-aging and corrosion resistance and long service life.

3. Good fire resistance: Aluminum alloy is a non-combustible material, which improves safety to a certain extent.

4. Beautiful appearance: The surface treatment is diverse and the colors are rich, which can meet different decoration styles.

5. Good thermal insulation performance: The partition structure effectively blocks heat transfer.

Disadvantages of aluminum alloy doors and windows:

1. Higher price: Compared with plastic steel doors and windows, the cost is higher.

2. Slightly inferior thermal insulation performance: Despite improvements, the thermal insulation effect is still not as good as plastic steel doors and windows.

Advantages of plastic steel doors and windows:

1. Superior thermal insulation performance: Plastic has a low thermal conductivity and can effectively maintain indoor temperature.

2. Relatively low price: relatively low cost, economical and affordable.

3. Good sound insulation: can effectively block external sounds.

Disadvantages of plastic steel doors and windows:

1. Low strength: may deform after long-term use.

2. Poor weather resistance: easy to age and discolor, need regular maintenance.

3. General fire resistance: plastic is flammable.

For example, if you pay attention to the strength, appearance and long-term performance of doors and windows, and have a sufficient budget, aluminum alloy doors and windows may be more suitable for you; if you have high requirements for insulation and sound insulation, limited budget, and do not mind regular maintenance, plastic steel doors and windows may be a good choice.