Copper CNC Machining Get instant quotes on custom copper machined parts with our Online CNC Machining Service. Make quick-turn prototypes and production parts in days with free standard shipping on all US orders. ISO 9001:2015, ISO 13485, and AS9100D certified. ITAR registered. GET QUOTE Copper CNC Machining Copper symbol Cu, known as element 29 in the periodic table, is second only to silver and is an excellent electrical and thermal conductor. Commercially available copper is typically more than 99% pure, with the remaining 1% made up of impurities such as oxygen, lead, or silver.Copper is widely recognized for its electrical…