Aluminum Or Copper Wiring - Can I Use the CDA Data? Yes, you can! If you have a website or an app that you would like to enhance using the alloys properties and supplier data, please review our API documentation and examples and contact us about using the CDA API.. Make Your Own Shielded Extension Cord or Appliance Cord. MµCord™ can be used to make extension cords and appliance cords. Simply cut wire to desired length and add a plug to one end, or plug one end and socket on the other.. Yale Electric Supply Company has been expanding and thriving since 1940. From our first counter in Lebanon, PA to our now nine locations, we have become a powerhouse in the electrical and lighting distribution industry..