How to choose the appropriate AC Axial Fan

"AC Axial Fan" system is divided into Sidewall, roof exhaust fan exhaust fan. Sidewall is also divided into windows size to buy. Roof fan is also divided into type and inclined forward, ventilation type is mainly used in the planning of what is the most appropriate system, the safest, most economical and most effective ventilation and cooling equipment can reach the workshop will give you a breathing workshop. Optional "AC Axial Fan" to understand the product features and price what is "AC Axial Fan" feature, whether three non-product, age, warranty, and other so-called
Three None: None R & D: Which certainly assembled goods.
No Experience: suction fan quality, ventilation and cooling effect?
No production: suction fan service, warranty gone.