Ningbo Aier Ventilation Equipment Co., Ltd has recently launched another type of its access door series for the ventilation ducts – Flat Access Door.
What is Flat Access Door?
Flat Access Doors are designed to provide inexpensive and trouble free access to the rectangular air ducts for ducts cleaning and maintenance. The flat access doors are made out of hot-dipped spangle-free galvanized steel (Dx51D+Z275) with polyurethane as the gasket.

Advantages of Flat Access Door?
The flat access doors were developed right after the samples of the maintenance access doors were approved by our customers. During the development of our flat access doors, we have made 3D drawings, opened molds, produced samples, etc. Thanks to our many years of experience in developing and producing maintenance access doors, we were able to make 3 prototype flat access doors of different sizes in just 30 days. We were very glad that our customers were satisfied with the samples and made a quick decision to place the trial orders with us shortly after.
Ningbo Aier Ventilation is always dedicated to offering superior products and better service to our customers. Besides the flat access doors, we have already developed and perfected curved access doors, maintenance access doors, rectangular access doors and tabbed access doors to meet the various demands and specifications of our customers. And we will continue to develop innovative solutions and manufacture high quality products.