HEAT TREATING FURNACE AT 1400 DEGREES F - NARA - 17422144.jpg
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HEAT TREATING FURNACE AT 1400 DEGREES F NARA 17422144, 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 TREATING FURNACE AT 1400 DEGREES F
commons
ja
国立公文書館所蔵の画像:国立公文書館所蔵の画像:ほか、国立公文書館所蔵の画像:1400年前のもの
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heat content