I'm working with a situation where a companies sells specialty materials. The industry is based on mil-spec and industry standards. What usually happens is that people find the company, then they ask for a quote on materiels based on the mil-spec, size, finish, etc.
I couldn't determine if google base lends itself to this or not. What I did see was one vendor offering a limited range of fairly standard items for a fixed price. (I guess that would get you to show up in Google Base).
Anyway, if anyone can tell if you can list "call for quote" items in the Google base, I'd appreciate it