intrinsically safe explosion-proof telephone

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HAK-2 intrinsically safe explosion-proof telephone (Ann type IIC grade) 　　　This phone is intrinsically safe product function,with functions of ordinary telephone,dangerous gas mixture for the dangerous sites,supply to coal mine, mine, chemical plant and so on communication. Connected to the switch, explosion-proof communication system. Main technical parameters Model: HAK-2 intrinsically safe explosion-proof telephone (Ann type IIC grade), Waterproof, moistureproof, quakeproof, anti-theft (should have special tool to open), Ringing voltage: 52 V or less. Ringing current: 38 mA or less Explosion-proof marks: ExibI, Protection grade: IP56. Dimension: 280 * 220 * 220 Madery Jining Hengwang Mining Machinery Co., Ltd. Website: http://www.hengwanggk.net E-mail: maderyhengwang AT hotmail.com Skype: maderyhengwang Trademanager: cn1501554236 Mob: +86-13668679003 Tel: +86-537-2581138

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Jining Hengwang Mining Machinery Co., Ltd.

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