Kō, kōseki, tetsu oyobi hagane, dō, tetsu oyobi hagane seihin, kikairui ni kansuru chōsa
Series: Jūyō kamotsu jōkyō -- dai 8-hen
Publisher: Tetsudōshō Unʼyukyoku
Published: 1926
Place of publication: [Tokyo]
Language: jpn
Subjects: Mineral industries; Metal trade
Other titles: Kō, kōseki, tetsu oyobi kō, dō, tetsu oyobi kōseihin, kikairui  ni kansuru chōsa.
Notes: Cover title.