Certification

Closing force supplement device of fire door door closer
Door closing device
Closing force supplement device of fire door door closer

YESUNG GLOBALCEOKyung-tae Kim

Headquarters208room, 80 Daehak-ro, Buk-gu, Daegu, Republic of Korea (41556) (Kyungpook National University Business Incubation Center)
Tel82-53-955-1304 Fax82-53-955-1305

Factory18 Seongseogongdannam-ro 22-gil, Dalseo-gu, Daegu, Republic of Korea (42719) Tel82-53-584-1304 Fax82-53-584-1306