Replying To [David Frencken]:
You hit the nail right on the head in your last paragraph.
I have seen it personally all too often.
Importers, Wholesalers, Distributors around the world want to make huge profits and buy the cheapest they can in China. Even to a point where they get a price from the manufacturer, then negotiate downwards. The only option the manufacturer has, is to use cheaper raw materials.
I usually go to a manufacturer and tell him exactly the quality I want, then ask him for his best price. I make SURE that I tell him that quality is MOST important, so please quote me according to the quality I need, rather than a cheaper price.
That way 99%of the time, I get exactly what my customers want