Can reverse the anti-wind BK54 fan, anti-wind rate of more than 40%, it does not require the construction of anti-duct. Blade installation angle can be adjusted, according to changes in mine production, at any time adjust the fan operating mode. Fan mounted to the underground fans, if smaller DK45 fan off the roadway can be upper and lower portion of the cabinet, wheels, motors and other open transport respectively. If the roadway off the larger, in order to facilitate underground installation, you should try not to open the handling. DK40 fan _ Board Ventilator (certified) _ sunshine fans by Zibo Blower Factory Co., Ltd. Zibo Blower Factory Co., Ltd. (www.zibo-fengji.com) is an industry leader in Shandong Zibo, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Zibo Blower leadership with the staff warmly welcome all inquiries negotiations to create a better future Zibo Blower.