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Overhead Concealed Closer

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  • Benefits of a Commercial Door Closer
    A Commercial Door Closer is an effective way to protect the entrance to your business. The mechanism works by regulating spring tension through hydraulic fluid, which passes from the reservoir to the door when it is opened. The speed of the spring can be adjusted by adjusting the valves on the door closer.
    2022-01-03

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  +86 139 2903 7292
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