氧化铪, Spectrographic Grade, 99.9% (metals basis 去除 Zr), Zr 通常 <50ppm，99.9%

Hafnium(IV) oxide, Spectrographic Grade, 99.9% (metals basis excluding Zr), Zr typically <80ppm

仅供研发或工业应用，不可直接用于食品、药品、临床诊断或治疗。