Be careful when selling to CPC Laboratories. They purchased some material from our firm and the check for $80.00 bounced. We have been calling and calling with promises to replace their check. This firm should be on a watch list. Good thing I don't work for them, I would be afraid that my paycheck would bounce!! Too bad I can't add the image of their bounced check. This is making me give it a star rating.... too bad I can't minus the star!!! -********************************