Sorry for the delay in responding, Hama, but I haven't turned up anything promising in my library on the subject. The only references to semi-auto rifles in pre-WW2 service in China that I've found are to the Czech ZH-29/32/35 designs. If any Mondragon semi-autos actually made it to China, I'd suspect they were imported only in "sample size" quantities. The only thing I can think of to further suggest is that you try contacting Bin Shih, author of China's Small Arms of the 2nd Sino-Japanese War (1937-1945), directly to ask him if he knows anything about it. I'll PM you the last e-mail address I have for him if you're interested.