铜线, Copper wire

铜棒, Copper rod

铜管, Copper tubing

镝箔, Dysprosium foil

铒粉, Erbium powder

铒棒, Erbium rod

钆片, Gadolinium pieces

钆箔, Gadolinium foil

锗片, Germanium pieces

镀金液, Gold plating solution