Yttrium Element over Metal Alloy Background
Schlüsselwörter
alloy,
metal,
metallic,
periodic,
table,
of,
element,
chemical,
chemistry,
stone,
rock,
transitory,
alkaline,
alloy,
steel,
process,
signs,
abbreviation,
symbol,
number,
atomic,
cinematic,
grey,
stone,
metallurgy,
ying
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