Materials electrical cooling fan blower used, has passed the test of friction sparks Chongqing Branch of China Academy of coal testing center and meet the requirements of the explosion-proof cooling fan manufacturers, machine-proof performance has passed the national test explosion-proof electrical products quality inspection center . In order to fit the requirements of coal mine ventilation network of resistance and to ensure fan efficiency, the machine uses a rotating structure, namely the two docking along the same model fan cooling fan, two wheel opposite the direction of rotation of the guide vanes and eliminates the need to reduce wicket loss and improve efficiency. 0.37KW cooling fan cooling fan _ _ provided by Zibo Zibo Blower Factory Co. Blower. 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!