Currently, an increasing number of people are concerned about the safety of industries. According to different regulations, safety is definitely the first consideration for many enterprises and individuals. During this process, loto lock plays an important role in preventing the related staff from accidental injuries. 

The concept of security locks grew up in the USA. In the last century, European and American countries began to pay attention to the use of safety locks. With the development of the times, security locks began to spread throughout the world. 

A safety locking device is a locking device that ensures the safety of employees in production operations in a workshop or factory. In Europe and the USA, there have been specific requirements for the use of safety locks for a long time, for example in the US OSHA Occupational Safety and Health Administration Regulations, which clearly state the importance of the correct use of safety locks.