Established in 1991, Shanghai Nanhua Electronics Factory has specialized in the manufacture of industrial alarms and communication systems for over 16 years. In cooperation with design, manufacture and sales, Nanhua has strong developing ability and our products have been well applied in harbors, metallurgy and coalmines. Through long-term study and development, Nanhua has accumulated years of experience in the manufacture of industrial alarms and communication systems. Due to solid waterproofing and sound shockproof performance, our products are used in 80% of the world's harbors. To cope with the special requirements in industry, in 2004, we developed NHT Page/Multi-party communication system which can withstand the harsh effect of the environment, such as strong electromagnetic inference. It has been used in harbors for over 2 years. Nanhua is proud of its achievement made in the past years and its continued good relationships it has with its customers.

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