The difference is huge, and the most often overlooked:
- single door: a wide range of options, lock card, handle lock, hook lock, smart are easy to match;
- DOOR DOOR DOOR: Involving the buckle and alignment of two doors, it needs to be matched double live tongue/split special model, or cooperate with the ground lock, upper and lower latches to form a complete set of solutions. Only lock unilateral short-term can be used, long-term will lead to door deviation, closing feel worse.