Maintenance and operations personnel can only fan in the side and keep a distance of 1m main fan working mine safety certificate, non-standing inlet and outlet fan. Fan blades and fan with removable motor disassembly shall be carried out in accordance with the tightening torque to tighten fasteners on the specification requirements. DK40 main fan blade main fan, Urumqi main fan, provided by Zibo Zibo Blower Blower Limited. Zibo Blower Factory Co., Ltd. (www.zibo-fengji.com) strong, credible, Shandong Zibo fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Zibo Blower and you hand into the brilliant, for a better future!