Several installation methods of door closer
The characteristic of the door closer is to accurately close back to the origina
What is the difference between door closer and floor spring?
Door control products in the hardware industry are very important accessories in
The effect of door closers on the door
The sort of door closer is the accessories of the door industry in the hardware
What is a door closer?
The door closer is a spring-like hydraulic device installed on the upper part of
Working Principle of Closer
The basic components of the hydraulic door closer are support guide, transmissio
The function of the door closer
Modern hydraulic door closer (hereinafter referred to as the door closer) began
Use Requirements and Selection of Closers
Closer products must meet the national standard GB/T 2698-2005. Closers used for
Installation Method of Closer
The most commonly used shutters are external shutters, which are installed in th