Extreme Sales, Inc. Share: Retail Equipment & Supplies Extreme Sales, Inc. Visit Website 3700 Memorial Highway Mandan, ND 58554-4708 (701) 663-2238 (877) 663-2238 (701) 663-5581 (fax) About Map About Trailer sales and service What's Nearby? Distance: 5 10 15 20 25 50 mi.