Door Closer Door Hardware

Zhejiang Dorrenhaus Hardware Industrial Co., Ltd is a high-end Germany originated door control hardware brand. Dorrenhaus China was formally founded in 2011. Most members of our management team have more than 15 years of experience in door closer industry. Dorrenhaus have focused on the manufacturing of hydraulic door closer for decades, obtaining ISO9001 quality control system certification and ISO14001 environmental management system certification. Dorrenhaus door closer have the superior UL & CE certifications, with max. 5 mils lifecycles. Dorrenhaus have 205 high-efficiency employees and 15,000 square meter factory. Modern factory, automatic machinery and skilled workers ensure high quality. Dorrenhaus door closer is without oil leakage and abnormal noise, Easy to control and long lifecycles. Our main products includes hydraulic door closers, concealed door.