铂丝, Platinum wire

铂线, Platinum wire

铂丝, Platinum wire

镨箔, Praseodymium foil

铼柱, Rhenium slug

铼丝, Rhenium wire

海绵状铑, Rhodium sponge

铑丝, Rhodium wire

钌粉, Ruthenium powder

钐片, Samarium pieces