- Damotech Co., Ltd.
- Used Smart Phone,Smart Phone,Used Mobile,Radio & System,Network Communications,Wireless Networking Equipment.
- Address:Youngdeungpoku
- Spy-Zone Co., Ltd.
- Personal Protection,Contraband Detection,Tracking-Recovery,Tap Detection,Scramblers,Radio Communications,Bullet Proof Products,Bug detection,Video Surveillance,Audio Surveillance.
- Address:955-13,Daechi-dong ,Gangnam-gu
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