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Our company aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine continuously for Wholesale Price China W719 Listed Medium Heavy Duty Adjustable Automatic Door Closer, In case you are interested in almost any of our objects, make sure you never wait to call us and go ahead and take initial step to construct up a successful business romance.
Our company aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine continuously for China Door Closer and Door Closers, We’ve our own registered brand and our company is developing rapidly owing to high quality merchandise, competitive price and excellent service. We sincerely hope to establish business relations with more friends from home and abroad in the near future. We look forward to your correspondence.

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.

Our company aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine continuously for Wholesale Price China W719 Listed Medium Heavy Duty Adjustable Automatic Door Closer, In case you are interested in almost any of our objects, make sure you never wait to call us and go ahead and take initial step to construct up a successful business romance.
Wholesale Price China China Door Closer and Door Closers, We’ve our own registered brand and our company is developing rapidly owing to high quality merchandise, competitive price and excellent service. We sincerely hope to establish business relations with more friends from home and abroad in the near future. We look forward to your correspondence.