Products

Having a positive and progressive attitude to customer’s fascination, our organization constantly improves our solution high-quality to fulfill the requirements of shoppers and further focuses on safety, reliability, environmental prerequisites, and innovation of Factory Selling (EDC001) Transon Aluminum Door Closer Transom Closer, All products are manufactured with advanced equipment and strict QC procedures in order to guarantee top quality. Welcome prospects new and outdated to get hold of us for business enterprise cooperation.
Having a positive and progressive attitude to customer’s fascination, our organization constantly improves our solution high-quality to fulfill the requirements of shoppers and further focuses on safety, reliability, environmental prerequisites, and innovation of China Door Closer and Transom Closer, We’ve been persisting in the business essence “Quality First, Honoring Contracts and Standing by Reputations, providing customers with satisfying items and service. ” Friends both at home and abroad are warmly welcome to establish everlasting business relations with us.

The D4016 Series features a single-piece cast aluminum body and a 1-3/8” heat-treated steel piston, a heat-treated pinion and staked valves. The D4016 Series standard door closer is certified ANSI/BHMA A156.4 Grade 1, is UL listed and is backed by a 10-year warranty.

*In case of unusually high or heavy doors, windy or draughty conditions, or special installations, a large power size of door closer should be used.

Dorrenhaus comprises R&D center, testing laboratory,manufacturing center and sales dept, has over 10 in-service engineers and research specialists. Since it was founded, developing High performance door control products has always been the objective of Dorrenhaus. Dorrenhaus people have continuously tried to improve product quality, introducing oversea high and new technical equipment,giving our company good technical capabilities. Moreover, all of our R&D engineers has more than 20 years experience in door closer industry.

WE ARE DORRENHAUS
WE STARTED AS A FAMILY BUSINESS, OVER 140 YEARS AGO!
Dorrenhaus brand was originated in 1872 in Germany,with the development and progress, Dorrenhaus successor decide to invest door closer factory in China.In 2011,Zhejiang Dorrenhaus Hardware Industrial Co.,Ltd was formally established.

They disable the self-closing function of a fire protection door in a controlled way. This means that they keep fire protection doors open, but automatically release them in the event of a fire so that door closers can do their job.

Having a positive and progressive attitude to customer’s fascination, our organization constantly improves our solution high-quality to fulfill the requirements of shoppers and further focuses on safety, reliability, environmental prerequisites, and innovation of Factory Selling (EDC001) Transon Aluminum Door Closer Transom Closer, All products are manufactured with advanced equipment and strict QC procedures in order to guarantee top quality. Welcome prospects new and outdated to get hold of us for business enterprise cooperation.
Factory Selling China Door Closer and Transom Closer, We’ve been persisting in the business essence “Quality First, Honoring Contracts and Standing by Reputations, providing customers with satisfying items and service. ” Friends both at home and abroad are warmly welcome to establish everlasting business relations with us.