That's why all the associations in the furniture industry are telling you that the best way to ensure strong competition is to keep an open market. You have to avoid having a process whereby the only person that meets all the production capacity requirements of a call to tender is also the one with the lowest bid.
Requiring large production capacity over a very brief period of time excludes all businesses. If only two are left, they'll compete with each other. If it turns out that they are the two companies that had the most expensive products — I'm not at all saying that's the case — the government will ultimately pay more than it would have paid if the call for tenders had been open to the entire industry.