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2020年光電子產(chǎn)業(yè)博覽會(huì)
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2019.12.10
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Laser and Intelligent Manufacturing
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2025 PHOTONICS CHINA EXPO
Date：30 June 25-27th
Venue：Beijing-International-Convention-Center,Beijing
Tel：010-83739885
(Monday to Friday 08:00-17:00)
WeChat：POC124
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