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Shenzhen Hac Telecom Technology Co., Ltd.
products: LoRaWAN Pulse Reader, NB-IoT Data Logger, Wireless Metering Module, Smart Metering Solution, LoRaWAN Gateway
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NB-IoT LoraWAN wireless remote meter reading smart diaphragm gas meter
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NB-IoT LoraWAN wireless remote meter reading smart diaphragm gas meter