The practical truth is:
Hairy or not, it does not matter to chinese WGs.
Chinese WGs may usually refuse to service guys from Middle Eastern and Indian Sub-continent, especially true in China but in HK, not that too obvious.
Why? Just fobia and other social reasons.
But do not be dismay when u get rejected, that just the way it works for chinese WGs.
Just move to the next WG.
Good luck!!! and come back with a report.