钬粉, Holmium powder

铟粉, Indium powder

铟锭/按钮, Indium ingot/button

铟箔, Indium foil

铟棒, Indium rod

铱粉, Iridium powder

铱线, Iridium wire

铁块, Iron lumps

铁箔, Iron foil

铁线, Iron wire