A fire steel door refers to a door installed to use as an entrance to a fire-fighting area compartmentalized by floor, area, or use-related regulations to prevent further spread of fire in the building and to minimize damage caused by it, and KS F 3109 (door set) specification is applied.

A type fire steel door has been tested for its torsional strength, vertical load strength, opening and closing force, opening / closing repeatability and impact resistance by heating it for more than 60 minutes at 925 ° C for the fire resistance test to check non-insulated performance 

B type fire steel door has been tested for its torsional strength, vertical load strength, opening and closing force, opening / closing repeatability and impact resistance by heating it for more than 30 minutes at 840 ° C for the fire resistance test to check non-insulated performance 

If the specification is the same as that of our door frame, it is possible to construct it on the existing door frame.

However, please note because the door frame of other companies may not fit the door of our company. 

We, Keumgang Fire Door, produces / door frames, but we do not provide actual measurement and construction.

You may request to a place nearby (chassis company, glass, service center, security window, etc.).

In case of door frames, you may need to construct new ones depending on the aging. For more information, please contact the local branch office listed on the homepage.

In principle, Keumgang fire steel door is sold only in manufacturer and distributor, so if you want to buy our products, you have to place an order through our branch. 

Therefore, you should get the unit price and the quotation from the branch office in your area, please call the representative number or leave a message through the website "1: 1 consultation" and we will contact you immediately 

When ordering for the first time, please order the product that matches the purpose of the building. If you tell us that you need a test report at the time of order, we will produce the door set according to the report configuration and issue the test report after delivery. 

It takes about 20 days from the order date. There are some differences depending on the design, and there may be an increase or decrease on the days taken depending on factory circumstances.

On average, it is one year from the installation completion period. (Based on the branch)