External Overhead Door CloserExternally mounted door closer is equipped with hydraulic buffer oil pump device, which can make the door open and close ...

The correct installation method can maximize the role of the door closer, but also reduce many unnecessary trouble, it is necessary to choose the righ...

Dampers equipped with hold-open pneumatic closers have a variety of adjustments that you can use to make the door close smoothly every time. While eve...

he door closer is an adjustable, spring-loaded mechanical arm that closes automatically either after a mechanical opening or after someone manually op...

1, which occasions need to install door closersThere are fire, theft prevention needs or national mandatory requirements, as well as access control au...

With the development and progress of society, people are paying more and more attention to their own health. Indoor air quality is a factor directly r...