Noise reduction air duct

The utility model discloses a noise reduction air duct. Air duct, a sound absorption sleeve is arranged on the inner wall of the air duct; the sound absorption sleeve is coated on the inner wall of the air duct; a plurality of sound absorption holes are formed in the inner surface of the sound absor...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	GU CHANGFENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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