铂丝, Platinum wire

铂丝, Platinum wire

铂线, Platinum wire

镨箔, Praseodymium foil

铼粉, Rhenium powder

铼丝, Rhenium wire

铑粉, Rhodium powder

铑箔, Rhodium foil

钌粉, Ruthenium powder

钐片,升华树枝状, Samarium pieces