Although i doubt it will be much cheaper, after all its the same service.
If you want to ship large quantities you should look into cargo container shipping, which is much cheaper.
Reshipper from Poland to China/Hong Kong (parcel shipping company)
I'm looking for a company that can send packages from PL to CN/HK.
My friend got shipping company on US that can get his packages delivered from US to his place on very cheap rates 10-12 USD (usually shoes).
Similar company that is shipping from US to Poland is Polamer, taniestany.com.
I want to find something like that, that can be used to get orders from Poland.