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Installed at the API oil unloading port on the bottom of the vehicle, it serves as the executive mechanism of the intelligent lead seal lock. It works in coordination with the controller (Z10) via wired connection, enabling stable and efficient monitoring of the status of the tank truck's oil unloading port and control of its opening and closing. This fundamentally solves the problems of traditional lead seals and other locks, such as being easy to copy, counterfeit, illegally replaced, and having unstable communication. Moreover, the intelligent valve lock can be customized according to the size of the oil unloading port.