In the product info page there should be a variable $manufacturers_name
you could then use that, as it describes the manufactures already and would be easy to remember which is which.

**If you want to do it a little bit more fancy**
Personally, I would add a column to the manufactures table and then call on that on the product info page. And allow it to be changed via manufacturers.php in the admin.
Or
You could us just add plan php file that you could do a switch

Does that make sense?