Daiken. 

Daiken Co.,Ltd., headquartered in Osaka, Japan, is a key manufacturer and supplier specializing in a broad array of metal products, primarily serving the domestic Japanese market. Their comprehensive catalog of building materials features various door components, including hardware and hanger rails, along with ceiling, floor, and wall access hatches. The company also provides outdoor sheds, innovative clean and touchless multi-stockers, secure key storage solutions, and specialized door devices such as push bars and hybrid mechanisms. Other offerings include hardware for folding door systems, bicycle racks, curtain rails, products for HACCP-compliant environments, and a selection of exterior building materials. Beyond its domestic operations, Daiken actively exports goods destined for both residential and commercial construction projects worldwide. The company was founded in 1924.