commercial electric fan

調節可能なサイズ 防火ダムパー&エア・ボリューム制御ダムパー HVAC換気

POPULA Fire Damper & Air Volume Control Damper Fire dampers and air volume regulating dampers are essential safety and air adjustment fittings for building HVAC ventilation and fire protection duct systems. Manufactured in Foshan, Guangdong, available in galvanized steel or stainless steel materials...