Maximum ambient air temperature changes with the seasons 9-26 fan, but not more than + 40 ℃; minimum temperature of -15 ℃; fan compartment manifold pressure with a pitot tube and a manometer. 9-35 fan 9-35 fan 9-19 fan (certified), Texas fans by Zibo Blower Factory Co., Ltd. Zibo Blower Factory Co., Ltd. (www.zibo-fengji.com) is a professional "fans, mine fan, mine fan, explosion-proof fan, heat fan, boiler fan" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage of healthy competition in the market, so that the "cloud laugh" brand has a good reputation. We adhere to the "service first, customer first" principle, so that the congregation Zibo Blower won the trust of customers in fan, ventilation equipment, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!