1. We assure that the product procedure is under the ISO9001 quality management system certificate.

2. According to the national correlation regulate and company after sales management byelaw, Beijing Hailin Auto Control Equipment Co.,Ltd. provides free maintenance ,change in one year. Provides the maintenance for life depend on the purchase contract or purchasing invoice execute.

3. Beijing Hailin Auto Control Equipment Co.,Ltd. establish customer file according as the contract, invoice and correlate information.

4. We promise to arrival field in 14hours in Beijing area after servicing report. Arrival the locale less than 72 hours depends on the traffic situation out of Beijing area.

5. According to the after service management byelaw, we carry out charge maintenance for the products which is out of the guarantee maintenance.

6. Beijing Hailin Auto Control Equipment Co.,Ltd. customer service number: (0086)010-80702235.