While providing users with first-class quality products, we place emphasis on sincere services with complete devotion. As each customer’s requirements, we provide comprehensive ventilation consulting services. We analyze users’ demand and operation environment to design production and processing plan most suitable to the users. We provide users with standard and systematic professional technical training for ventilation environment protection as well as actual operation demonstration. We also provide maintenance general knowledge consultation and chain services of installation and commissioning. We establish fan operation and maintenance files according to the user's circumstances so as to master the operation status of the users. We provide professional consulting services for product updating and functional improvement. We also establish fan spare parts warehouse to meet the demand of the users for replacement of spare parts for maintenance.