1. If any quality problems such as design, manufacture, function or produce occur within the guarantee period, we shall take full responsibility and bear the economic losses incurred.

2. If any quality problems occur within the guarantee period, we shall provide on-site service after receive the buyer’s notice in 24 hrs.

3. If any big quality problems occur out of the guarantee period, we will send maintenance technicians to provide visiting service after receive the buyer’s notice in 24 hrs and charge for favorable price.

4. we will provide a lifetime favorable price to the buyer with the materials and spare parts used in system operation, equipment, and maintenance.