Mapes Piano String Company is a manufacturer of piano strings, piano wire, guitar strings, guitar core and wrap wire, and music spring wire. They offer piano string replacements, dulcimer wire, missile wire, spring wire, and quality control services. The company has a history of pioneering quality control techniques and has expanded into processing rare alloys for electrical, resistance, and mechanical applications, including nuclear, aerospace, and defense industries. Mapes has a strong base of profitability established through logical progressions in product development and process refinement.