If the door can't be opened, it can be called fire fighting if you need to turn over the external wall to open the door. The following two situations can be called fire fighting:

1, there are old people and children trapped.

Cooking may cause a fire.

3. A more appropriate way than to find a fireman is to find a professional lock-unlocking company. Don't trust some small advertisements easily. Choose through formal channels. Formal companies and locksmiths registered by the Public Security Bureau have received professional and formal technical training and are certified to work. The principle of unlocking is not to damage the lock, and now many of them are very time-sensitive. Open and transparent charging is a good way to prevent fraud.