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Mining And Tunnel

T0302 Thomson East Coast Line Tunnel

"State-of-the-art ip pbx technology, intelligent fire alarm phone, waterproof phone with high waterproof rating, and perfect solution, a very enjoyable cooperation." ------Training person in charge
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KNTECH Telephone In Power Tunnel

"Very good industrial phone with anti-electromagnetic interference, which solves the problem of poor phone call quality in the previous power tunnel."
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IP Pbx System in China Tunnel

"A very reassuring company, always thinking about customers, 100 points for technology, 100 points for service! good!" ------- Tunnel staff
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Telephone Broadcasting System China Tunnel

"Very professional communication company, from end to end, to the system, very professional, is a trustworthy company." --- Tunnel communication construction personnel
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