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- Patented Floodlights THOR
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- Patented Linear Systems PENCIL
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- Membership Card of Korea Electrical Construction Association
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- Electric construction business registration certificate
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- DIRECT PRODUCTION CONFIRMATION CERTIFICATE_Indoor lighting facility construction
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- DIRECT PRODUCTION CONFIRMATION CERTIFICATE_Outdoor lighting facility construction
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- DIRECT PRODUCTION CONFIRMATION CERTIFICATE_Optical lighting
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- Certificate of Inno-Biz
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