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fire alarm linkage smoke exhaust : Security Solution New Burglar and Fire Alarm Systems
Technology1 years ago
Source: fire alarm linkage smoke exhaust : Security Solution New Burglar and Fire Alarm Systems
Security Solution New Burglar and Fire Alarm Systems : According to the different parts of the setting, the mechanical pressurized air supply system can be divided into the mechanical pressurized air supply system in the stairwell and front room, the mechanical pressurized air supply system in the refuge layer and the mechanical pressurized air supply system in the refuge aisle.
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