JTF-GOM-D21 Ex point-type composite smoke and heat detector_Automatic fire alarm system_Fire protection integrated control system_Products_Shanghai Qiaoning Industrial Co., Ltd.

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JTF-GOM-D21 Ex point-type composite smoke and heat detector

JTF-GOM-D21 Ex point-type composite smoke and heat detector

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Automatic fire alarm system

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JTF-GOM-D21 Ex point-type composite smoke and heat detector