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Dorse Aptallar için

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Fire dampers are fitted where ductwork passes through fire compartment walls and fire curtains kakım part of a fire control strategy. In uygun circumstances, these dampers are held open by means of fusible links. When subjected to heat, these links fracture and allow the damper to close under the https://gulustantreyler.com/kapakli-damper-dorse/

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