This kind of management lock has dual functions. One lock is equipped with a key, and it is also equipped with a management key that can open multiple locks. The day before yesterday, in the standard dial combination lock market, the salesperson of Shanggang Lock Industry Store introduced. The walls of the store are covered with various padlocks such as steel padlocks, stainless steel padlocks, aluminum alloy padlocks and engineering plastic padlocks. Today's padlocks are more confidential, more user-friendly in design, and more intelligent in functions. At present, consumer demand for padlocks is becoming more and more diversified. There are more than 300 varieties and specifications of padlocks in the brass padlock for sale lock market. Brass padlock for sale locks companies have increased their research and development efforts, and the padlocks they produced have moved from practicality to artistic quality. Traveling commemorative and ornamental padlocks are very popular.