I get most of my industrial electronic components, including SMD PLCC sockets, from RS (Radio Spares) and Farnell, who are both international companies and have branches in many countries.
If neither of them are in Brazil, it's probably no big deal to get some sent from the nearest one to you.
Both of these companies are here in the tiny country of New Zealand, so I'd be surprised if they didn't have anything set up in your area.
They sell small quantities and are extremely fast, but are a bit pricey. Still, it's only a PLCC socket!