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Thank you for the links to the Chinese forums, that could be really helpful. Are you registered there? It seems it's all in Chinese and that's all Greek (or Chinese?) to me
The two link above are proper Chinese forums with proper Chinese experts. I used them in the past for a Chinese coin I wanted to authenticated but I didn't register myself. If you use the browser "in site" translation tool (right-click and then translate to english) you can register using your cell number. But it might be easier to find a Chinese friend and ask to help (like I did).
Good luck!