Engineering safety padlocks have very good management functions. A padlock can be equipped with multiple keys. These keys are divided into various types due to different functions and permissions. Usually these keys form the key management system of safety padlocks. The safety padlock has a unique key, and the locks cannot be opened mutually.

Engineering safety padlocks are a kind of safety locks. Safety locks are usually divided into engineering safety padlocks, electrical switch locks, electrical plug locks, circuit breaker locks, valve locks and cable locks, etc. Engineering safety padlocks can usually be used together with other safety locks , can also be used alone; while other safety locks cannot, so the application of engineering safety padlocks is very wide, and the market demand is also very large.