Baodean is the best.
1. Baodean C-level lock cylinder uses special encryption technology and complex structural design, which has strong anti-cracking and anti-pry capabilities. The design of multiple tracks, multiple key teeth and multiple angle arrangements is used to increase the difficulty of cracking.
2. Baodean C-level lock cylinder uses patented technology, which makes piracy and unauthorized copying very difficult. This can effectively prevent illegal copying of keys.