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Patents and Certificates

Reliability Test

We create high quality products by putting in place strict criteria for tests.

Tests on opening and closing of the doors
To produce reliable products, various tests are undertaken to ensure high durability.

Fire Resistance Test

Fire-resistance technology has been built in to ensure the customer’s
safety even in situations of sudden fires.

Fire-resistance technology ensures that sparks caused by fires
do not spread to other spaces, thanks to the fire-resistant door installed with the digital door lock.
The test checks that when the fire-resistant door is exposed to
flames of 950℃ for 60 minutes, sparks do not become visible for 10 seconds or longer.