Walkie electric control lock

- Mar 29, 2017 -

Its internal structure is composed of electromagnetic mechanism. Users simply press the electric lock on the extension key can make the solenoid Coil is energized so that the electromagnetic mechanism connecting rod action, was able to hold the door open. Door closer is a special automatic door closer linkages. It has a regulator, you can adjust the acceleration and strength, easy to use and flexible.

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