[nsns]

The problems might have been due to your (mis)communication with your Chinese partner, I wouldn't rush into accusing the entire Chinese manufacturing sector for your problems. In fact, an accusation like this proves you have problems of perception and prejudice on your side which might have contributed to it.

[yaix]

Its always "due to translation problems". That's usually the next step after the "yelling" part. The yelling part is to make the customer give in a little more. After that, blame all the yelling on misunderstandings due to language problems, so both sides save their face, and go back to negotiate.