Douai is designed and manufactured using high-quality material and the latest techniques in compliance with industry standards. It has been exported to USA, Italy, Germany, France, Poland, South Korea, etc
s******r
The design of Douai is never out of date. It has optional materials including HFC, HCFC, HFO, and HC
b******r
The design and material selection processes of Douai are strictly controlled. It is not poisonous or lethal to human health and foodstuff
x******m
Douai leads in design and technology. It is leak-tight manufactured with advanced joining techniques
v******h
The manufacturing process of Douai is safe and reliable. The low molecular weight, volatility, lipophilicity and liquid state at room temperature makes it the organic solvent in commercial industries
l******g
A rigorous quality control process ensures zero defects and consistent quality. It has zero Ozone layer depleting properties