On the aspect of commercial vehicle production, the producing concentration of the enterprises reveals lower in general except heavy, medium duty trucks;

在商用车生产领域，除重型、中型载货汽车外，企业的生产集中度从总体来看相对较低；

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Unlike the light-duty vehicle market, most medium- and heavy-duty truck purchasers operate on slim profit margins where fuel costs are a major factor in their economic survival.

FORBES: Magazine Article

In addition to medium and heavy-duty trucks and buses which are clearly used by businesses, commercial vehicle numbers in China include sales of light trucks and mini trucks and buses, many of which are used by individuals and small businesses.

FORBES: China's key economic indicator: auto sales