The freezing technology of Douai has been greatly improved by our R&D team who tries to achieve the great cooling effect while shortening the freezing time.
t******x
Douai has gone through the following production process: the preparation of metal materials, cutting, welding, surface treatment, drying, and spraying.
r******r
Douai is produced strictly complying with the domestic water purifier standards. It has passed the quality test which requires the water treated by this product are safe and clean.
e******k
Advanced process equipment is used during the production of Douai , such as the newest CNC cutting, stamping, and welding machines.
d******z
The design & engineering team of Douai applies state-of-the-art software and 3D mechanical CAD programming to finish the design from conception through completion.
h******l
The quality of the product has been greatly assured by out stringent process quality control system.