碘球状, Iodine spheres

海绵状铱, Iridium sponge

铱箔, Iridium foil

铁粉, Iron powder

铁片,无规则形状, Iron pieces

铁箔, Iron foil

铁箔, Iron foil

铁线, Iron wire

铁棒, Iron rod

铅粉, Lead powder