We don’t know when accidents will come. Most accidents are caused by negligence and neglect. Therefore, everyone should increase the awareness of fami...

The characteristic of the door closer is to accurately close back to the original position after the door is opened. It is widely used in our lives, m...

Door control products in the hardware industry are very important accessories in our life. Although door closers and floor springs can ensure that t...

Different fire doors have different flame retardant time in fire scenes，so that the effect is very different. There are many ways to choose a high-q...

The sort of door closer is the accessories of the door industry in the hardware accessories industry. Usually，we are extremely easy to be misled by t...

Dear overseas buyers, exhibitors and relevant parties involved: The Ministry of Commerce of PRC has decided that the 127th Canton Fair is to be hel...

The basic components of the hydraulic door closer are support guide, transmission gear, reset spring, one-way valve, rack plunger, throttle valve cor...

Modern hydraulic door closer (hereinafter referred to as the door closer) began in the early twentieth century, a patent registered by the United Sta...

Closer products must meet the national standard GB/T 2698-2005. Closers used for fireproof doors should also meet the requirements of GA93-2004 Firep...

The most commonly used shutters are external shutters, which are installed in the following ways: The most common standard usage is that the door c...

1) Usually there are installation templates in the instructions provided with the door closer, so first read the instructions and determine the insta...

The newly installed door closer should be inspected and re-tightened for about a week to 10 days. The hydraulic oil recommended by the manufacturer...