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Aluminum Alloy Door Closer

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2022
DATE
03 - 09
How to install the door closer?
The most commonly used door closers are external closers, which are installed in the following ways.Here is the content list:Door closer installation methodsDoor closer installation stepsDoor closer installation methodsDoor closers are generally divided into 3 types of installation Option A - Regula
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2022
DATE
03 - 02
Common problems and maintenance methods of door closers
Sometimes after a period of operation of the door closer will have some problems, so when there is a problem we should how to repair it? The following is a detailed introduction.Here is the content list: The usage and maintenance of door closersCommon problems1) Loose or missing mounting screws, r
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2022
DATE
02 - 23
How to choose door closers correctly?
Door closer products must meet the national standard GB2698-2005, fire door closers should also meet the requirements of GA93-1995 "fire door closers test". So what factors should be considered when choosing a door closer? The following is a detailed introduction.Here is the content list:The width a
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2022
DATE
02 - 16
Introduction to door closer
Automatic door closer may be a spring-like hydraulic device on the top of the door, once the door is opened is often discharged by compression, the door can mechanically shut, there is like a spring door role, can ensure that the door is opened, accurate and timely close to the initial position. So
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