铜溅射靶, Copper sputtering target

铜板, Copper plate

铜纱, Copper gauze

铜线, Copper wire

铜线, Copper wire

铜线, Copper wire

铜棒, Copper rod

镝粉, Dysprosium powder

镝箔, Dysprosium foil

铒片, Erbium pieces