Sep 01,2022

Airtightness requirements for fire doors

The national standard has clear requirements on the size of the gaps at the lap joints of fire doors: for steel fire doors, it is required that the overlap between the sash and the door frame should not be less than 10mm,


Aug 30,2022

Installation method of steel fire door

There are some differences in the installation method between steel fire doors and wooden fire doors. It is also slightly different from the fire rating.


Aug 26,2022

The important role of door axles and hinges

If it is installed on the top and bottom of the door, it is called a door shaft; if it is installed on the side of the door, it is called a hinge.


Aug 24,2022

What are the skills for the installation of steel fire doors

The installation sequence of steel fire doors: marking - vertical door frame - door leaf and accessories installation.


Aug 22,2022

What to look for in the purchase of regular medical steel doors

There are no welding points and rivets around the door leaf, and the occlusal structure is used to prevent cracking; the thickness of the plate, the thickness of the ordinary steel door leaf plate is 0.4-0.6


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