1. Charging limit function: it is specially used for gas cylinders of European standard, Angle valve with pressure relief function, and adopts the principle of variable electromagnetic field to prevent inflation of ordinary guns;

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.