They all come with ~30 years warranty, I think you're stuck in the 1970s when it comes to Chines manufacturing capabilities, the top of the line chinese factories are just as good as EU/US ones, probably even more high tech

> you're stuck in the 1970s when it comes to Chines manufacturing capabilities

Probably not, having done contract manufacturing in China quite recently. Asking for a source isn't the same as disputing an assertion.

> top of the line chinese factories are just as good as EU/US ones, probably even more high tech

This is my guess. I like to substantiate my guesses.