1、Provide technical training to users to continuously improve product quality。

2、After receiving the user's problem notice, make a preliminary response within 1 hour, and arrive at the site for major problems within 24 hours.

1、Ensure to provide users with good service, introduce product performance and use requirements, and provide relevant information.

2、Ensure delivery according to contract requirements, and provide technicians to guide installation and commissioning.

1、Not covered by the warranty.

2、It is not our product itself that needs to be returned to the factory for repackaging.

3、It is beyond the scope of warranty, but can be repaired free of charge after application.

4、It is within the scope of warranty, but it is directly returned to the factory by express without negotiation.