wire harness manufacturer, assembly masters manufactures wire and cable assemblies, toroidal inductors, formed power cables and toroidal transformers. assembly masters has earned a reputation for consistency and superior workmanship in their products by working closely with their customers to understand each one's individual requirements. their commitment to long-term relationships goes hand-in-hand with delivering technically excellent wire harness products. assembly masters â more than just a wire harness manufacturer. contact us we want to add you to our long list of satisfied customers.