Provide productions including refrigerating units, air coolers, coal mine safety monitoring system, underground person-location and management system, and underground wireless communication system.

生产和销售井下制冷机组、空气冷却器；煤矿安全监控系统及其传感器；井下人员管理系统；井下无线通信系统。

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Also the solutions for mobile communication technology at surface ground can be fully to solve the wireless communication problems in underground mine.

同时指出，陆地移动通信技术解决方案完全可以解决煤矿井下无线通信难题。

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Also the solutions for mobile communication technology at surface ground can be fully to solve the wireless communication problems in underground mine.

同时指出，陆地移动通信技术解决方案完全可以解决煤矿井下无线通信难题。

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