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There are no uniform regulations in this area, and fines or rectifications are local regulations.
In fact, changes are possible as long as they meet the requirements of the technical specifications. It's really hard to generalize about fines in our country or something.
It is possible to submit the modification request to the gas company, but it cannot be changed without authorization.
Generally, you should find a professional company to change the natural gas pipeline and ask a professional master to change it, or you should ask a professional to change the pipeline after consulting a professional.
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