The hope of bus operators for buses in the next 10 years is a crucial period for the modernization of urban public transport. It will also be a crucial period for the formation of an industrial structure. Automobile operators hope to meet price, shape, service, performance, quality, and economy. With comprehensive indicators such as brands, there have been significant advances in energy conservation, zero pollution, carrying capacity, and comfort, and the quality of urban buses has been continuously improved. Analysis of the characteristics of foreign city buses that can be used for reference The large-scale buses in Europe are in the leading position in the world. There are many large and elegant buses that are as elegant as artworks. They have many features that we can learn from. A detailed analysis will now be conducted on several typical features and their associated technologies. (1) Large-scale design. The Mercedes-Benz articulated bus "CAPACITY" was developed on the CITARO platform. The length of the vehicle is 19.54 meters. The rear engine is offset, the third axis is driven, and the fourth axis is driven. Large-scale design (2) Low-floor design. The chassis adopts air spring airbag technology instead of traditional leaf spring type shock absorbers, and the computer side controls the appropriate reduction of air charge on the side of the door. The body can be automatically tilted moderately to reduce the distance from the ground to the door and make it easier for passengers to get on and off. (3) The driver has no visual zone design. Combining the advantages of both large curved surface and streamlined shape, it boldly adopts a monolithic super-large panoramic windshield to maximize the driver's vision. (4) Accessible design. The low-floor design is combined with a barrier-free pedal that can be controlled electrically and telescopically. When necessary, it can be stretched to the ground to allow the wheelchair to get on the train directly, and a wheelchair-dedicated space is provided in the vehicle for barrier-free design. The new trend of China's urban bus design is influenced by the design of foreign city buses. While the scale of urban buses in China continues to expand, new trends in modeling and design have gradually emerged. Large-scale, low-flooring In the past, because there was no dedicated city bus chassis in China, most domestically-made city buses used bus chassis modified from truck chassis. Therefore, the high floor height is also an important reason why China's urban buses cannot be upgraded. In recent years, the trend of large-scale urbanization and low-flooring of urban buses in China has become increasingly apparent. This has important implications for solving the problem of the dense population and traffic congestion in China.
We are China manufacturer of high quality grade 36,grade 55, grade 105 Threaded Rods and threaded bars in astm f1554 standard. Our advantages and more services of threaded steel rods includes:
1) Wide range of diameters from 1/2" - 4"
2) Customized Length from 100mm to 12000mm
3) Good threads at 60 degree
4) Good straightness: 1mm/m max
5) Even hardness on whole bars
5) Proper mechanical properties
7) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
8) Fast delivery time
Grade 36 Threaded Rod,Grade 36 Steel Bar,Grade 55 Threaded Rod,Astm F1554 Grade 105 steel bar,Astm F1554 Grade 105 Threaded Rods SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdbrightsteelbar.com