Dongjing Electronics (002199) revealed to investors on the interactive platform on Wednesday afternoon that the company's LED sapphire substrate project is in progress, and has been completed and installed in small batch production.
The main business of Dongjing Electronics is the development, production and sales of quartz crystal resonators and ceramic tubular capacitors.
The main business of Dongjing Electronics is the development, production and sales of quartz crystal resonators and ceramic tubular capacitors.
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