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Early pneumatic tyre, use is made of coated with rubber canvas when tire body, because the canvas ordinate and horizontal lines cross each other, due to the deformation of the tire when walking, lead to rub against each other, in this way, the line is easy to be ground breaking, the tires can only run 200-300 km. In 1903, Mr. J. f. palmer invented the twill textile, which led to the development of cross - layer tires, making the tyre life a big step forward. Because the tire of the skew fork will no longer cause friction because of the tread of the tyre, the cord will not be easily worn out, so the life span will be considerably longer. In 1930, Michelin made the first tyre without a tyre. The world famous meridian tire was invented in 1946. Therefore, the development of the tire has been a long journey, in this long night, I do not know how many generations have paid hard labor and excellent wisdom
20 cycles by the hour. The single acting hydraulic cylinders have drainage facility and top platform has a smooth surface. The hearings on pivot points are self lubricating and also the hydraulic power pack inside table are given with relief valve against overloading and compensated flow valve for controlled lowering speed. The electrical equipment is controlled by a digital system that carries a lv transformer and thermal overload protection. A wide range of accessories can be found combined with the lifts to achieve even higher safety functions where conditions require.
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