it's illegal.

the crime of producing and selling fake and inferior products according to Article 14 of the Criminal Law of the People's Republic of China. Producers and sellers who adulterate their products, pass off fake products as genuine ones, pass off substandard products as qualified products, and the sales amount is more than 5, yuan but less than 2, yuan, shall be sentenced to fixed-term imprisonment of not more than two years or criminal detention, and shall also, or shall only, be fined not less than 5% but not more than two times the sales amount

Criminals who endanger national security shall be additionally deprived of political rights; For criminals who seriously disrupt social order, such as intentional homicide, rape, arson, explosion, poisoning, robbery, etc., they may be additionally deprived of political rights

Confiscation of property means confiscation of part or all of the criminal's personal property. If all the property is confiscated, the necessary living expenses shall be reserved for the criminals and their dependents.

Extended information:

1. It is intentional crime to know that one's actions will have harmful consequences to society and hope or let such consequences happen, thus constituting a crime.

2. Criminals who have made meritorious deeds such as exposing other people's criminal acts, which are verified, or providing important clues to solve other cases may be given a lighter or mitigated punishment; Those who have made significant meritorious service can be given a mitigated punishment or be exempted from punishment

3. Criminals who commit crimes endangering national security, terrorist activities or organized crimes of underworld nature, who commit any of the above crimes at any time after the execution of the punishment or pardon, will be punished as recidivists

Baidu Encyclopedia-Chinese People's Republic of China and the Chinese Criminal Law.