News

  • Should the heaven and earth hook on the security door be used?

    06-08-2021

    Should the heaven and earth hook on the security door be used? According to the current anti-theft door technology, the heaven and earth hook can choose not to be installed. Because the sky-earth hook...

  • How to open the lock cylinder from outside

    26-07-2021

    In general spherical locks, there is a metal disc on the door that is close to the door, so the first thing to do is to use a tool to pry the disc loose, and then rotate the disc counterclockwise to m...

  • What lock core installation should be selected for home decoration

    23-07-2021

    The lock cylinders can be divided into A-level lock cylinders, B-level lock cylinders, and C-level lock cylinders. A-level lock cylinders are generally used on large iron gates, fence doors and wooden...

  • What are the door lock grades and lock core grades?

    16-07-2021

    The lock cylinder on the door lock has always attracted people's attention. How is the level of door locks and lock cylinders on the market divided? They are divided into three levels: A, B, and C. Th...

  • How to choose door and window accessories

    09-07-2021

    What is the importance of door and window hardware accessories? How to choose door and window hardware accessories? First of all, let's feel the importance of hardware accessories. Everyone knows that...

  • What are the characteristics of smart mechanical door locks

    29-06-2021

    Fully automatic intelligent mechanical door locks generally do not need a handle, and the motor turns the special mechanical door lock core to open the mechanical door lock. Therefore, the quality req...