clapet de ventilation,évent /ENG-MECHANICAL/
[DE] Lüftungsklappe
[EN] air shutter; air valve
[FR] clapet de ventilation; évent
clapet de ventilation,soupape de ventilation,vanne de ventilation /INDUSTRY-CHEM,ENG-MECHANICAL/
[DE] Lüftungsklappe
[EN] ventilation damper; ventilation valve
[FR] clapet de ventilation; soupape de ventilation; vanne de ventilation