大鳥機工 Company Profile

Comfort, safety, and reliable brand power.

The architectural hardware division, established in 1957, combines the outstanding technical and design development capabilities accumulated as a machine tool manufacturer to continuously develop and smoothly provide products tailored to needs, such as "floor hinges," "door closers," "automatic door hinges," "pivot hinges," and "revolving doors." These products are widely used in the global construction industry under the DIA brand, gaining recognition with keywords such as comfort, safety, and trust. Additionally, with the increasing intelligence of buildings, the developed product lineup is also attracting attention.