青娱乐国产视频盛宴-青娱乐国产在线播放-青娱乐国产在线观看-青娱乐国产在线视频-青娱乐极品盛宴-青娱乐欧美视频-青娱乐青青草-青娱乐青青草91

The tire is the only part of a vehicle that is in contract with the road, and it must keep balance between traction, comfort, durability, energy saving and total cost. In order to satisfy those conflicting needs simultaneously, the design and manufacture of a tire may be much more complex than e

6. Industrial production of tires During the period from 1913 to 1926, the invention of tire cord and carbon-black tire technology laid the foundation for the development of tire industry. Meanwhile, because of the standardization of tire’s outer edge and the gradual improvement of manufact

What is A Diagonal? The so-called diagonal tyre refers to the tyre whose cords are arranged diagonally, hence its name. The entire carcass is composed of multiple layers of diagonally crossed nylon cords. The tyre crown and sidewall belong to the same ply, which makes the tyre stress concentr

1. Early tire: In the early era, tires were made of wood, iron or other materials. The first hollow wheel was invented by a British named Robert Thomson in 1845, and he proposed that inflating the elastic bag with compressed air can ease the vibration and blow during movement. This kind of tire

The tire is the only part of the vehicle that is in contact with the road surface. The tire must keep a balance among traction, comfort-ability, durability, energy saving and total cost. In order to meet these conflicting needs at the same time, the design and manufacture of tires may be more co

1. Industrial production of tires From 1913 to 1926, the invention of cord and carbon black tire technology laid the foundation for the development of tire industry. With the standardization of tire outer edge, the gradual improvement of manufacturing technology, the production speed has been