Where can I find Heavy duty detergent liquid in Alpen?

Heavy duty detergent liquid can also be found in these cities:

Dinslaken Duisburg Geldern Hamminkeln Kamp-Lintfort Kevelaer Moers Neukirchen-Vluyn Oberhausen Rheinberg Straelen Voerde (Niederrhein) Wesel Xanten

You can also find this in Alpen:

Balsamic Vinegar Pork Spice Blends Potato Products Rye Roll Canned Tomatoes Sunflower Oil Mustard Bourbon Whiskey Candies