Can anyone recommend a reliable PCB manufacturer in China?

http://www.seeedstudio.com/service/index.php?r=pcb

Thanks for the information. I'll try. I was using

 

http://www.myropcb.com/

 

The quality and the price are correct but the problem is the shipping method. They use UPS (although the carrier is not UPS but some air companies) and only UPS. UPS adds the shipping cost to the price and the total amount exceeds the custom exempt to be declared. For this reason it is necessary to pay custom duties for the total amount and to UPS for the custom administrative work, and the offer of 20USD for 5 PCBs become around 100USD.

Have you tried here?

 

http://www.pcbway.com/?cgaw=101&gclid=CIilsYOsicICFVglvQodrpkAIw

PCBShopper is pretty good for finding the cheapest boards, but most places won't populate them as well. I use DirtyPCBs (based in Shenzhen) and haven't had to pay any customs fees on DHL shipping to Canada.