HEAT EXCHANGER - DAMAGED VALVE - NARA - 17422549.jpg
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HEAT EXCHANGER DAMAGED VALVE NARA 17422549, 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 EXCHANGER - DAMAGED VALVE
commons
ja
HEAT EXCHANGER DAMAGED VALVE NARA 17422549、米国国立公文書館所蔵:『HEAT EXCHANGER -DAMAGED VALVE-』
commons_translated
heat exchanger heat content exchanger valvular