HDB-2 intrinsically safe explosion-proof telephone phone telephone Mine Explosion

HDB-2 intrinsically safe explosion-proof telephone Telephone mining properties and advantages of the explosion-proof telephone calls: The phone casing made of antistatic reinforced polyester production, waterproof, dustproof, anti-corrosion wall-mounted keyboard is fully sealed with a luminous touch of a button, and with an emergency call, hang up and redial. With a call from the gain adjustment switch, according to the distance telephone switchboard with dispatch, sent by then adjust the gain for the coal mine long distance calls, line insulation bad situation. Packing: Carton Usage: widely used in high temperature, high and dry sound, high humidity and heavy pollution harsh environments such as: power plants, coal preparation plant, steel mills and ports Service: Excellent Name: Manager Liu Mobile 15562337281 QQ; 2964406456 Want: meikuang008 Address: Jining High-tech Zone