@lispm: "the raw materials would get cheaper" doesn't mean anything for export. Raw materials for export get in, and they get out inside the finished goods - at the same exchange rate. The exchange rate is neutral for raw materials that get reexported.
Instead, relative labor cost would change. That labor is high quality? Yes, it is. But importers wouldn't buy it "at any cost". Higher price, same value -> less demand.
As for the DM getting stronger all the time: It did so in time, while German relative productivity was rising. On the contrary, this would create an incredible shock. I wish you not to see your dream come true. You could find out it's a nightmare.
The German manufacturing industry does not export raw materials. It exports cars, machines, tools, power plants, .... For building these things it needs all kinds of materials. Much of that is imported.
> relative labor cost would change
German has already a much higher labor cost than most comparable countries. Still we have industry here and Germany is the second largest exporter in the world.
Instead, relative labor cost would change. That labor is high quality? Yes, it is. But importers wouldn't buy it "at any cost". Higher price, same value -> less demand.
As for the DM getting stronger all the time: It did so in time, while German relative productivity was rising. On the contrary, this would create an incredible shock. I wish you not to see your dream come true. You could find out it's a nightmare.