http://dvlp.boxmanufaktur.ch/?page_id=125
You have to check upper right the languages. If you click on "EN" and then for example click on "Produkte" it switch back to German language. The last 2 menu items are links to another website. So this is not relevant. Just "Home" and "Produkte" and all the subitems.
PS: The page will be translated if the German website's online