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Door closer installation, door closer oil leakage repair method!
Door closers are divided into exterior-mounted and hidden-type, and the most commonly used is the ex..
What are the requirements for the use of door closers in the United States?
In the United States, the standard for the use of door closers depends on the location of the buildi..
Types of door closers
Door closers are an essential part of most buildings. These small hardware ensure that the door clos..
The difference between electric door closers and hydraulic fire door closers
The electric door closer is different from the hydraulic fire door closer, it combines the functions..
Fire door closers are very important
Now in shopping malls, the normally closed fire doors of high-rise safety exits often become "normal..
Precautions for choosing door closers
Product feature selection: Door closers have the functions of closing and locking the door. The fun..
What should be paid attention to when installing the door closer?
1. Read the installation manual before installation; 2. Install according to the steps and requir..
Where should door closers be installed?
There are fire protection, anti-theft, national mandatory requirements, and automatic and intelligen..
How to choose a suitable door closer?
Choose a suitable door closer according to the conditions of use. For example, in northern regions o..
What problems should be paid attention to when choosing a door closer?
Before choosing a door closer, you should consider: your door weight, door width, door opening frequ..
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What problems should be paid attention to when choosing a door closer?
Before choosing a door closer, you should consider: your door weight, door width, door opening frequ..
Types of door closers
Door closers are an essential part of most buildings. These small hardware ensure that the door clos..
What should be paid attention to when installing the door closer?
1. Read the installation manual before installation; 2. Install according to the steps and requir..
Precautions for choosing door closers
Product feature selection: Door closers have the functions of closing and locking the door. The fun..
How many ways to install the door closer?
The characteristic of the door closer is that when the door is opened, it will be accurately closed ..
How to choose a high-quality fire door?
The flame retardant time of different fire doors in fire scenes is also different, so the effects ar..
Fire door closers are very important
Now in shopping malls, the normally closed fire doors of high-rise safety exits often become "normal..
What are the requirements for the use of door closers in the United States?
In the United States, the standard for the use of door closers depends on the location of the buildi..
Working principle of door closer
The basic components of the hydraulic door closer include support guides, transmission gears, return..
The role of the door closer
The modern hydraulic door closer (referred to as the door closer) began with a patent registered by ..
