Fan is mainly composed of four main parts impeller, housing, air motors and current collector and other components. To double-check after unpacking packing slip pneumatic blower motor, which should be product certification and instructions for use. When the user requirements, but also attach the fan aerodynamic performance test report. Zibo pneumatic blower _FBD Board Ventilator (certified) _ Baotou pneumatic blower 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!