Where can I find Heavy duty detergent liquid in Gevelsberg?

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

Bochum Dortmund Essen Gelsenkirchen Hagen Hattingen Herne Holzwickede Lüdenscheid Remscheid Schwelm Schwerte Solingen Velbert Witten Wuppertal

You can also find this in Gevelsberg:

Pumpernickel Espresso Beans Whole Wheat Toast Hair Straightener Body Care Eye Care Nail Cosmetics Hair Coloring Vitamin C Biotin