Okey just googled it, here's the exact list.
Code-Share Flights: A codeshare flight is a commercial flight which is operated by one airline, but marketed by others. Free baggage allowance will be issued in accordance to the allowances of operating carrier.
Operating Carriers
Economy
Business
First Class
PK as operating Carrier
30 KGs
40 KGs
----
Other Airlines as operating carriers
CZ ( China Southern Airline)
20 KGs
30 KGs
40 KGs
VV (Aerosvit Airlines)
20 KGs
30 KGs
-------
TG (Thai Airways)
20 KGs
30 KGs
40 KGs
TK (Turkish Airlines)
20 KGs
30 KGs
--------
PIA - The PIA Experience
P:S.I prefer Qatar Airways.
And I hope next time you'll do some "research" -as you say-.
Now that's more realistic and very acceptable.