Lutetium foil

Hafnium(IV) chloride

氯化铪(IV)

Hafnium(IV) oxide

氧化铪

Hafnium(IV) ethoxide

乙氧基铪

Tantalum rod

Tantalum(V) n-butoxide

丁醇钽

Tantalum(V) oxide

氧化钽

Tungsten rod annealed

铼微球, Rhenium pellets

铼粉, Rhenium powder