Is the electronic certificate of Beijing second-class constructor valid without signature?

Effective.

The electronic certificate of the second-level builder does not need to be signed yet, but it can only be used after the builder signs it manually.

The electronic registration certificate of the second-level constructor does not need to be printed and signed. For the security of the certificate, it can be signed and handed over to the enterprise for use.

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Is it illegal for inspectors of tobacco companies to break into the owner's house and search for tobacco (breaking through the window without anyone's consent)?

What's so funny? If not, let me know. It's for QQ signing.

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