Speed belts are generally divided into cast steel speed belts and rubber speed belts. Cast steel speed belts are generally used for large and heavy vehicles to enter and exit more places. Therefore, the speed belt has a longer service life and is more suitable for large tonnage vehicles. The disad... read more
Speed bumps are very common in daily life, especially those with cars. When passing the speed bump, slow down, otherwise it will cause great damage to the car. What is a good speed bump? What is the standard of good or bad? Today, Wei came to the fellowship to tell everyone. 1. All parts of the sp... read more
First, the tire. The tire is a part of the car that directly contacts the ground. The speed bump will form a pressure on the side of the tire, causing the sidewall to be stressed. However, the sidewall is a weak part of the tire, so many modifications are made. Owners of big wheels and thin tires wi... read more
Warning piles Nowadays, more and more road sign piles made of glass steel pipe are used in the sales market. The material used is glass steel anticorrosive composite material, which has no use value to retrieve the application, so it is also anti-theft. The warning lamp has good oxidation resistance... read more
A wide-angle lens is a photographic lens with a focal length shorter than a standard lens, a larger angle of view than a standard lens, a focal length longer than a fisheye lens, and a smaller angle of view than a fisheye lens. There are two types of wide-angle lenses: ordinary wide-angle lenses and... read more
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