1. Luoyang Fire Department: You can consult Luoyang Fire Department to find out whether it is responsible for the annual inspection of fire extinguishers and the specific annual inspection requirements. You can get accurate information through official website of Luoyang Municipal Government or call the contact number of Luoyang Fire Bureau.

2. Fire service companies: There are many professional fire service companies in Luoyang, which also provide annual inspection service for fire extinguishers. You can consult the local fire service company to find out their annual inspection process, cost and schedule information. You can consult the local fire service company to find out their annual inspection process, cost and schedule information.

3. Building management: If your building (such as residential quarters and commercial buildings) has a special management, you can consult the arrangement and specific requirements for the annual inspection of fire extinguishers. Usually responsible for organizing annual inspection or providing relevant information.