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Thông tin chi tiết Specification : Construction : IP54 Explosion Proof Class : ExdIIBT4 Rating : DC24V 15mA Sound Output : 92dB/m Conduit : G1/2 Operating Temp. Range : -20 ～+60℃ Weight : 3 Kgs. Inspected by : Technology Institution of Industrial Safety (Approval No. 第C15174 号) Japan Fire...