From my dealings, I'd go as far to say they do EXACTLY as asked with regards ro manufacturing, you just have to ask the right questions and make it VERY clear.
A long time ago I asked that I had a certain component used during manufacture (as it was a higher quality), thanks to a language barrier they took it to mean I wanted the documentation to state the part was used (when it really wasn't)
Once I had explained that they HAD to use the part for the item to be reliable they were more than happy to continue down this path and have never deviated from this course. But as shown they are more than content to keep the customer happy, even if they think they're mislabelling etc etc to get a sale. This is where less than honest suppliers will utilise their lenience and get dodgy things made cheaply.
"Just following orders"