铱黑, Iridium black

铱柱, Iridium slug

铱线, Iridium wire

海绵状铁, Iron sponge

铁柱, Iron slug

铁箔, Iron foil

铁溅射靶, Iron sputtering target

铁线, Iron wire

铁棒, Iron rod

铅颗粒, Lead granules