commercial electric fan

Настраиваемые размеры Огнезащитный амортизатор и амортизатор контроля объема воздуха для вентиляции HVAC

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...