- YongJin Elecomm Co.,Ltd
- RF Connector,Lightning Protector,Passive Component,Military Connector,Industrial Connector,Connector.
- Address:# 147, Nae-Dong, Ojeong-Gu
- Sunkwang L.T.I
- Lightning protector,Surege protector,Grounding system.
- Address:Cheong Lim-dong 17-12 Sunkwang Building
- TRF co.
- Power Divider,Directional Coupler,RF Cable Assembly,Lightning Surge Arrestor,Other Manufacturing&Processing Machinery.
- Address:167-16 3F, Goean-dong, Sosa-gu
- Encomm Co.,Ltd
- Field Call System,Light Pole for Safety,Door Frame Correction Device,Wireless Lightning Warning System.
- Address:505 ho,Mugeo-dong ,Nam-gu
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