1. Look at the gap
A good aluminum alloy trolley box is made of a whole piece of aluminum-magnesium alloy material, which is integrally die-casted. There is no gap in the joint part of the back of the box, and the waterproof effect is very good. At present, there are many trolley boxes on the market which are made of two-piece or loose-grain aluminum-magnesium alloy. The back gap is covered with other materials. The trolley box for the purchase of American aluminum alloy must pay attention to whether the gap of the box part is blocked. live.
2. Look at the lever
The magnesium alloy aluminum alloy body is also made of Alcoa. The hand feel is very smooth and the mute effect is very good. There is no sound in the pull-up and push-back. This effect can be maintained for a long time. Some trolley boxes start to pull out very well, but after a long time, this effect is difficult to maintain, and it is more difficult to push back and pull out.
3. Carrying handle
The design of the carrying handle is a more elegant place for the trolley box. When the carrying handle of the low-end trolley box is lifted up, it will sound when it is automatically retracted because the handle of the traditional trolley box is forcibly pulled back by the spring for a long time. The spring deformation loses the effect of rebound. The handle design of the aluminum alloy trolley box is generally designed with a damped rebound design, and the rebound is silent. When you purchase, you can try the rebound feel of the handle.
4. The surface of the box
The aluminum alloy trolley box is generally silver-gray in color. Others are gold, blue, pink, etc. The coloring of the surface of the box is a technical activity. At present, the mainstream coloring technology has two kinds of painting, and the other is Oxidation. Painted boxes began to buy very beautiful colors, but it will take a long time to paint off. Oxidation technology is more durable and has a strong ability to resist fading. Basically, there is no fading. Pay attention to the surface of the box when buying the box. If the surface of the box has small particles visible to the naked eye, it is usually painted. Because the paint is uneven or the dust in the paint environment is relatively large, the surface has small particles. The oxidized box is better identified and the surface is flat. There are no small particles visible to the naked eye, and the hand feels very smooth.
5. The wheel
Generally, the wheels of the trolley box can easily feel bumps during the towing process, and the noise is relatively large. The alloy trolley box is generally a two-wheel design, and the towing is relatively stable and stable, and the cushioning effect is better.
6. Trolley lock
The general trolley lock design is very simple, and it is easy to break. Travel abroad is generally not available. Aluminum-magnesium alloy trolley boxes are generally designed with TSA customs locks. If there is customs inspection, the customs will open your suitcase with special tools. If TSA customs lock is not installed, it is unfortunate that it will be directly violent. Open your suitcase.