* Precise cast aluminum body & steel arm, hold open arm optional
* Adjustable closing & latching speed
* Adjustable back check, delayed action & hold open function optional
* Non-handed installation
* Adjustable spring force #1-6
* ANSI 156.4 certification 2 millions life cycle
* UL 10C certification 3 hours fire rating
On Oct. 10th, 2011, Dorrenhaus’s door closer manufacturing base in China - Zhejiang Dorrenhaus Hardware Industry Co., Ltd. was
formally founded. All members of management team have more than 15 years experience in door closer industry.