HEAT EXCHANGE ASSEMBLIES - NARA - 17426966.jpg
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HEAT EXCHANGE ASSEMBLIES NARA 17426966, US National Archives series: Photographs Relating to Agency Activities, Facilities and Personnel, Images from the National Archives and Records Administration, US National Archives location: other, HEAT EXCHANGE ASSEMBLIES
commons
ja
HEAT EXCHANGE ASSEMBLIES NARA 17426966、米国国立公文書館所蔵:写真 活動・施設・人事関係、国立公文書館所蔵:他、
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heat content heat exchanger