Conclusion: The unqualified sale of small concrete mixing stations violates the crime of illegal business operations in the Criminal Law of the People's Republic of China and the People's Republic of China. Specifically, it violated the provisions of Article 225 of the Criminal Law, which is to operate franchises and monopoly items restricted by law without permission, or to engage in illegal commercial activities and disrupt market order. The following is a detailed explanation of the basis for punishment:

According to the law, the crime of illegal business mainly includes operating franchises and special items without permission, buying and selling relevant licenses, illegally operating securities, futures or insurance businesses, and engaging in other Behavior that seriously disrupts market order. If you sell a small mixing plant without qualifications, you may be convicted of violating these regulations.

First of all, unqualified sales activities are unlicensed business activities and violate the legal provisions of specializing and selling special items. Secondly, operating without a legal license or approval document also constitutes illegal operation. Moreover, if this kind of behavior causes serious disruption to the market order, it will constitute a serious case and meet the criminal conditions stipulated in the criminal law.

It is worth noting that the criminal law’s application of illegal business crimes is limited to situations that disrupt market order and the circumstances are serious. This crime does not apply to non-profit business activities, even if they violate regulations. At the same time, only violations of prohibited or restrictive provisions of national laws and administrative regulations will be considered illegal. If national law does not explicitly prohibit a certain behavior, it cannot be easily identified as illegal business.

Therefore, selling small concrete mixing plants without qualifications not only violates the law, but may also face severe legal penalties, including fines, revocation of business licenses, and even criminal liability. Any enterprise should ensure the legality and compliance of its business operations.