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Door closers are divided into exterior-mounted and hidden-type, and the most commonly used is the ex..
In the United States, the standard for the use of door closers depends on the location of the buildi..
Door closers are an essential part of most buildings. These small hardware ensure that the door clos..
The electric door closer is different from the hydraulic fire door closer, it combines the functions..
Now in shopping malls, the normally closed fire doors of high-rise safety exits often become "normal..
Product feature selection: Door closers have the functions of closing and locking the door. The fun..
1. Read the installation manual before installation; 2. Install according to the steps and requir..
There are fire protection, anti-theft, national mandatory requirements, and automatic and intelligen..
Choose a suitable door closer according to the conditions of use. For example, in northern regions o..
Before choosing a door closer, you should consider: your door weight, door width, door opening frequ..
Before installing the door closer, the user should read the installation manual, and install and use..
The modern hydraulic door closer (referred to as the door closer) began with a patent registered by ..
1) Usually, the instruction manual provided with the door closer has an installation sample, so read..
When the newly installed door closer is used for about one week to 10 days, all screws should be che..
Door closer products must meet the national standard GB/T 2698-2005, and door closers used for fire ..
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