I don't know. 

Dear Pavel, I have been to China for International Wood Machining Seminar, and people from the Nanjing University colaborated with Leitz very closely. You could write to the Leitz branch in China (http://www.leitz.com.cn/en/ArticleRead.asp?ArticleId=5) and I hope they suggest you the proper person. Regads

Hello, dear Professor Kazimierz A. Orlowski! Thank you very much for your response.   I heard about Nanjing. And I know that in China many other universities, focused on wood processing. I wonder which one is the main. Respectfully yours, Pavel