Sequoia Brass & Copper Copper OFE OFHC, Brass, Red Brass, Bronze, Aluminum, Architectural, OFE, OFHC, Oxygen-free, F-68, F68, Nonferrous, Naval, Tellurium, 6061, Angles, Bar, bus bar, Retail and wholesale supplier of copper, brass and bronze metal alloys in rod, bar, plate, sheet, tube. Specialists in 101 OFE OFHC oxygen free copper.