Aluminum Supply Company, Inc. (ASCO) is a second-generation, family-owned business based in Detroit, Michigan. Since 1948, we have built an impeccable reputation by consistently providing quality materials and exceptional service to our customers. ASCO's highly experienced, highly knowledgeable staff and endless network of industry resources ensures that we can meet the needs of any job of any size requiring extrusions, sheet stock and plate, or fabrication. Material we specialize in handling include steel, stainless steel, aluminum, and copper.