Chinese made crap replacement parts

I read an article once from a manufacturer of restoration parts and he said the American companies will give a contract to the Chinese to fabricate parts for a specific time period to exact specs, say two years or something and then the contract expires and they have to stop production. They do that and then they open a clone factory and continue production or simply just continues making the parts but as the dye wear the tolerances get loose and off and things no longer fit properly and are out of spec. They also begin using cheaper substandard materials when they can as well.