KOREA OPTICAL INDUSTRY AGENCY, the 7th floor, KOIA Building, 169, Nowonro, Buk-gu, Daegu, Korea
Business Licence No. 504-82-09945/
TEL +82-53-350-7853/
Fax. +82-53-353-7812/
E-mail. sgk1126@koia.or.kr
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