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10 things you need to know about "Synthetic Opal"
News & Events
Details:
Celebrating its 25th anniversary this year, the Hong Kong Optical Fair
is one of Asia’s top trade platforms in the eyewear industry,
collecting more than 780 exhibitors to deliver the latest and greatest
products to buyers from around the world. For more: http://hkopticalfair.hktdc.com/dm/2017/SEM/index_sem_en.html