Mill Supply, Inc. is a supplier of aftermarket parts for autobody restoration, stepvans, medium duty trucks, snowplows, and RVs, operating since 1944. They carry a great inventory, including rust repair panels and restoration products. Customers report quality parts, great service, and discounted prices. Orders placed before 3PM EST typically ship the same day, with very fast shipping often noted. The website is easy to use for finding parts, checkout is easy, and there are lots of shipping and payment options. Customer service is very helpful, providing thorough answers to questions. While some product descriptions and pictures could be better, and some wish for a broader parts selection, the overall experience is positive with quality parts and fast, reliable service.