My journey would be : ICN(incheon) > Shanghai Pudong > Guangzhou > Vancouver..

I have 6 hours at Pudong PVG to transfer.
Since my cosmetic items from duty free shop will be over 100ml, I think I need to get my check-in baggage back, and put those items into the trolley, and check in my baggage again.
But I do concern about any chance for missing baggage claim section on my way to transfer.
From the information above, there's no mention about baggage claim area in trasnfer section..
Could you please help me for this?

Both flights (International, Domestic) are in T2 all, and same airline. (CZ)
Can you please let me know whether there's luggage claim in transfer section?
oh, and of course, could you please tell me the procedure for my journey? Thanks a lot!!!