The fan outlet position 9-19 fan outlet angle to the cabinet said. Check the sound absorbing sheet and the sound absorbing sheet holder installation tightness. C) in the open upper canopy muffler, each piece can be replaced sound absorbing sheet. 9-35 _ dust blower fan (certified) _ Fan Fan Factory Limited by Zibo. 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.