After-sales service and Technical support
Set up after-sales service net nationwide.
800 free hot line: 800-810-2168.
Free installation, testing and software up-graded. Training classes are organized
      nationwide for users, and invite experts to give a class.
Set up users’ file to follow instruments’ quality.
Maintenance for life.
Provide all kinds of spare parts.
Holding 3-4times training class for users per year in Beijing, users can choose to
     participate according to themselves; and we will organize technical classes in
     different provinces every year to solve users’ problems.