in theory, but if you go to a manufacturer of lesser quality items, the standards that you are calling for are going to be necessarily lower.
If you buy lenses from zeiss and say "give me the best you have" and then go to some chicom slave labor factory and say the same thing, expect to have a different end product.
That's not how it works. That's not how any of it works.
When an RFQ goes out, it goes out with a set of engineering drawings which contain also referenced material, process, and performance specifications.
If the lowest bidder gets the order and the incoming material fails to meet dimensional, material, process, and/or performance requirements the shipment gets rejected and the supplier either doesn't get paid or gets to do it all over again on their dime.
This is my lane......