I don't know where to find the relevant information about urban gas (natural gas) pipe network construction. Such as design time, design life, anti-corrosion technology and so on.

Search in various departments of the gas company: You need more information than one department. I will give you different departments according to the information you need. This is exactly the status quo of our company. I have been to many gas companies and learned that many gas companies basically have such a process.

1, design time, anti-corrosion technology and design life should be found by the design unit of the gas company.

2. Completion data of the pipe network can be inquired in the archives department of the gas company. Completion data shall be produced by the construction unit and submitted to the relevant departments of the gas company for the record. Of course, the anti-corrosion technology may be different from the design, which can be based on the completion data.

3. Check whether there is any leakage accident in the pipe network operation department of the gas company.

4, pipe network construction data in the design department to consult the planning drawings, or in the pipe network operation department to consult.

The municipal public gas office can also check some completion information and accident information, but they only aim at the management of the medium-pressure pipe network in urban construction, such as the pipe network in residential areas and the gas office by urban industrial and commercial users and civil users. The information recorded by the gas office generally includes the completion time and the experimental pressure at the time of completion, and they will approve the gas supply only if they meet the requirements. But it is not easy to find information in government departments. Finally, it is suggested to check with the gas company.