Winhope technical service centers in Beijing Headquarters and subsidiaries of Taiyuan and Ji'Nan are available 24 hours a day and 7 days a week to feedback any questions or problems with satisfying answers or solutions. In case of emergencies, our engineers can be there in possible shortest time to provide their technical service. We promise to take the repair cost of problems caused by facility failure. Lead time will be one month or less. Emergent process will be necessarily applied to any special situations.