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With the continuous development of the transportation industry, vehicle technology is also improving, more and more new accessories gradually appear in people's eyes, hydraulic retarder is one of them.Hydraulic retarder is a vehicle retarder that reduces vehicle speed through hydraulic device, also known as hydraulic retarder.

Just entering the dog days, many cities across the country seem to have turned on the "stove" mode, and the scorching summer has also caused a severe test for the use of vehicles.

Lvtong, as the name implies, is a "green passage", which refers to the free passage on the highway dedicated to vehicles transporting fresh agricultural products. Since December 1, 2010, all toll roads, including toll Bridges and tunnels, have been included in the green channel for the transportation of fresh agricultural products.But in practice, not all vehicles transporting fresh produce are covered by the Green Pass policy, and there are some restrictions:1.

"Green pass" is the "green channel", which refers to the green channel specially opened up for the whole vehicle loading, no over-limit phenomenon, complete and effective fresh agricultural products transport vehicles, so as to achieve "no seizure, no unloading, no fines and reduce tolls" for the vehicles that run green pass in compliance, so as to shorten the transportation time, improve the transportation time and reduce the transportation cost.

In recent years, freight levels in the freight industry have continued to fall, and the income of car owners is significantly less than before. How much did the freight drop?A car owner in Guangdong shared the operating costs of his nearly three years of running transportation, taking his 4.2 meter light truck as an example, the attendance rate is 65%, and the average day can receive 1.4 orders.

With the continuous improvement of the requirements for cargo transportation in all walks of life, there are more and more subdivided fields in the freight industry. Different transportation fields also put forward different requirements for the types of vehicles, so the concept of "special vehicle for special use" came into being.

Trailer as a freight vehicle, its transport conditions are relatively complex, especially for tires, as the only part of the trailer in contact with the road, need to bear a variety of deformation, load, force and high and low temperature under high-speed, heavy load, rain, snow, sand and other conditions. Therefore, the tire loss rate of the trailer is generally much higher than that of the passenger car.According to the practical application of different categories, trailer tires are also designed with different patterns, what are the differences between these patterns?

Semi-trailer is a common type of vehicle in long-distance cargo transportation, which has no driving force of its own, and needs to be connected with the tractor through the traction pin, using the driving force of the tractor to achieve driving.

Semi-trailer axle, as a kind of axle without driving function and steering function, the main role is to support the body and the weight of the goods.As the number of axle factories continues to increase, it seems to be getting easier and easier for car owners to buy axles. Just the large and small brands on the market are dazzling. But Mr. Li, from Jiangsu Province, had trouble buying an axle.Mr. Li runs a machinery factory, which mainly produces all kinds of engineering and construction machinery, such as mobile crushing equipment and grinding equipment.

Disc brake shaft is a vehicle component widely used in passenger cars, relying on calipers to clamp the brake disc to produce friction to achieve braking, because the metal block used in the brake assembly is disk-like, also known as the disc trailer axle.In recent years, with the mandatory promotion of regulations and the influence of the industry trend, the application of disc brake shaft in commercial vehicles is more and more, and gradually shine with the advantages of light weight, sensitive response, smooth braking, good heat dissipation, strong resistance to water attenuation and therma