0.35 thin wall test for Malyan m180 / EX2 Owner

The extruder on this printer is sold as a 0.35mm but i can't succeed to print thinner than 0.5mm with this model.
Please test it and give me your feedback about it, to see if it's a feedrate problem or malyan is just lying to us pretending have 0.35 ext on their printer.

Thanks a lots for your feedback