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1. Charging limitation function: variable electromagnetic field principle is adopted to prevent aeration of ordinary gun;

2. Self-closing function: turn off the handwheel and do not vent air, only when the pressure reducing valve is installed;

3. Anti-disassembly function: only special disassembly equipment can disassemble Angle valve;

4, electronic label: built-in unique key, achieve a bottle of one yard, can not be mixed and stolen;

5. It can dock with Anbo smart gas platform to realize the management of cylinder traceability.