Analysis on Import and Export of Body Parts in December

According to the statistics provided by the customs on imports and exports, compiled by the China Association of Automobile Manufacturers, the analysis of the import and export of body parts in December 2010 is as follows: First, the export of body accessories products In December 2010, t

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Observe: tire size directly determines fetal noise level

The roughness of the road surface, the structure of the road surface and the material of the road surface are the factors that affect the size of the tire noise. In addition, the width of the tires and hubs also restricts the difficulty of noise reduction. Wide tires will become louder due to the

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