When it comes to medical solutions I'd think it's more than frowned upon to mislabel things... I've had some bad products from China (and many other places) but largely in consumer spaces where people won't care too much and consequences aren't significant. When it comes to lab or medical equipment, does this practice actually occur? It completely defeats the intent and would lead to a total loss of business, wouldn't it?
They don't even have the resources to check the food supply in the US... olive oil, fish, are often not what they claim. So that would not surprise me.