Re: Interesting defect from factory
I would say when they are installed on the production line, they have a protective sheet over them to prevent damage. This could make the wording difficult or impossible to read.
This would mean that if the wrong part got into the wrong parts bin, the installer would not know. You guys should be thankful that they still design and make cars in your country and have not offshored it all to Asia, south america or eastern Europe.