Main purpose and scope of application: Bureau Ventilator also applicable to other mine heading face ventilation fan ventilation JK58-11KW office machines, and a variety of occasions, local ventilation roadway tunnel ventilation. Fans ambient gas temperature -20 ~ 50 ℃, altitude not exceeding 1000m. The power supply is rated frequency of 50Hz, rated voltage of 380V / 660V or 660V / 1140V any one. YBT explosion Bureau Ventilator Ventilator _ _ Kunming Bureau 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!