> a less than desirable area of the world where quality control can be less than perfect


Area of the world is irrelevant when it comes to quality control -- quality control is related to management desire and competence. It is not unheard of for parts rejected by, or not meeting the specifications of the contracting company's quality control, to then be sold under the manufacturing company's name, rather than discarded or recycled.

Just because Manufacturer "A" is supplying parts to Company "B," does not mean that the parts you buy directly from Manufacturer "A" under their name are the same quality as those purchased from company "B" under company B's name.