Call the manufacturer and repair the lock at home. Contact the manufacturer to explain the model of the safe, but you need to provide personal proof. For example, if you bought a safe of a certain brand, but lost the key, you can ask their after-sales service department. These are not things. The main problem is that you should take the initiative to contact, but now some lazy people are unwilling to do so.
If the main key of the safe is lost, the safe will definitely not be opened, and we must find another way. Because if the master key is lost, there is no other way but to unlock it. Without the master key, the chain craftsman can't fix it. If the safe is old-fashioned, you can call the lock company to try it. If it is a new safe lock, they can hardly open it.
Brief introduction of state administration of foreign exchange
Safe is a special kind of container, which is mainly divided into fireproof safe, token storage cabinet, anti-theft safe, anti-magnetic safe, fireproof anti-magnetic safe and fireproof anti-theft safe according to its functions. Each kind of safe has its own national standard, and the first two are perpetual calendar safes on the market. According to the different working principles of passwords, anti-theft safes can be divided into mechanical insurance and electronic insurance. The former is characterized by cheaper price and more reliable performance.
Early safes were mostly mechanical safes, and electronic safes were electronic locks with intelligent control methods such as electronic passwords and ic cards. It is characterized by convenient use, especially in hotels, where passwords need to be changed frequently, and it is more convenient to use electronic password safes. The history of the safe can be traced back to the Middle Ages. In medieval paintings, we can occasionally see a wooden cabinet containing gold, silver and jewels, which is the prototype of the safe held by Shindai now.