Please dont repair it by yourself before contacting us.

We offer one year warranty . If there is any doubt or problem in process of operating the machine ,please feel free to contact us , we will reply you as soon as possible.

Tel：86-0431-84430437

Email  ：boanzhinengkeji@163.com

Address：Room 306 , 1600 Wuhan Road ,Jingkai District ,  Changchun City , Jilin Province ,China .