铜棒, Copper rod

镝粉, Dysprosium powder

镝箔, Dysprosium foil

铒片, Erbium pieces

铕片, Europium pieces

钆锭, Gadolinium ingot

钆溅射靶, Gadolinium sputtering target

锗片, Germanium pieces

钬片, Holmium pieces

钬棒, Holmium rod