Business scope: Monopoly,
Material Supply And Marketing Industry,
Law,
Exclusive Control,
And Technology Development,
Production Of Optical Glass,
Operating Import And Export Business,
Business scope: Quartz Products,
Rare Earth,
Sputtering Target,
Optical Components,
R D And Sales,
R D And Sales,
Flat Panel Display Materials,
Metal,
Production Of Optical Glass,
Rare Metal,
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