

Going: Brussels - shanghai - sydney - shangai - brussels
Hi!
From Brussels I want to visit friends in Australia and afterwards travel in China. Buying single fare flight tickets is more expensive then buying all round tickets.
So I bought an all round trip from Brussels to shanghai AND one allround from Shanghai tot Sydney.
I'll be arriving at shanghai airport Sept 21 and leaving the same day by plane to sydney.
Oct 14 I'll arrive back in shanghai (with a flight from Sydney) and stay for 23 days. Nov 7 I'll fly back to Brussels.
Do I have to buy a double entry visa for China
OR can I ask for a free transit visa for Sept 21. And ask for a regular 30days tourist visa for my trip comming from Syndey Oct14 and leaving to Brussels Nov 7. (That means entering and leaving the country with two different all-round tickets)?
Thank you!