1. Maintenance period: one year a).During the maintenance period: the parts damaged non-artificially will be provided free of charge. If buyers need the technicians,we will assign the technicalstaff to your company. And the fees ,such as round-trip tickets,accommodation etc, are all in buyers’ account. b).The debugging fees: free c).The training fees: First 7days is free , after that USD100/day for each technical. 2. After the maintenance period: If buyers need the machine parts, we will provide it as our cost. 3. You can custom the machine color. 4. DIY Design need to afford the cost accordingly.