'Gallium arsenide is used in  the semiconductor type of this device found in CD players'
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USES FOR ARSENIC: Gallium arsenide is used in  the semiconductor type of this device found in CD players
Gallium arsenide is used in  the semiconductor type of this device found in CD players
Gallium arsenide is used in  the semiconductor type of this device found in CD players
USES FOR ARSENIC
laser
USES FOR ARSENIC