1. Let's first understand the parts assembly part of the car seat, the parts of the car seat, the upper part: headrest, armrest, backrest, there are many kinds of lower parts. Generally there are: cushions, slide rails, bottom brackets, more advanced, with foot drags, shock absorption, rotation and some electric car seats.
2. Check the comfortable nature of the seat, a good seat is comfortable to sit on, and if it is uncomfortable, you should check the quality of the seat.
3. Check whether the seat is shaking. If not, it is the best. If there is, the first thing to check is whether there is a problem with the sliding rail. Generally, the shaking of the seat is because the sliding rail circlip is not stuck. You need to sit down and shake it back and forth to see if there is a problem with the slide rail. If not, there is a problem with the slide rail, and you need to contact the manufacturer to solve it.
4. Check the seat fabric. There are three types of seat fabrics. Polyurethane seat fabrics, namely artificial leather fabrics, leather seat fabrics and knitted fabrics. We need to look at the sewing density of the seat fabric. If the sewing density is uniform, the car seat will look comfortable and will not be stitched for basically ten years. If the thread is opened, it needs to be replaced immediately, because the thread opening speed will not be too fast at first, but the thread opening speed will be very fast.