It looks just like several I have dug up recently, which are elm of some kind but definitely not Chinese. one has wings in the bark, so either winged or cork bark. There is probably a Latin name for them.
I am sorry, I have just saw a Carpinus betulus / European hornbeam online and its leaves look exactly like yours.
I don't remember seeing hornbeams around here, so based on the leaves I guessed (wrongly) some sort of Elm.
Take a look:
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