1) Once the machine breakdown
2) Clients can call us for assitance
3) Senior engineer will diagnose online to help users solve the problem
4) If the problem cann't be solved online, professional maintenance engineer will provide door-to-door service and repair machines for users.
5) Troubleshooting, users can rest easy.
6) We will register and put on records, and  carry out unified management
7) Through listening to user's opnions, we can further improve our service system.
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