According to the information found on official website of Dongcheng Dust-free Saw, Qingyuan has a special maintenance point, which can provide the maintenance service of this brand. The contact information of specific maintenance points can be found in the service support column of Dongcheng Dust-free Saw official website, or you can call customer service for consultation.
You can also try to consult a local repair site or repairer in Qingyuan to see if you can provide relevant maintenance services.