I'm very sorry, I suggest you go to the local Jiuyang after-sales service department and ask the staff to help you check the authenticity of the machine: /netService.html You can check the contact information of the National Service Department here, and you can choose it nearby. The high imitation of Jiuyang, which is invisible to the naked eye, can only be disassembled and verified after sale, because each machine has an identification code and some production-related data, which can distinguish the authenticity. But there are also many imitations with poor workmanship, especially those that are sold very cheaply, which look very different from the genuine ones.