Ryūan kōgyō taisakuan (kaitei)
Publisher: Minami Manshū Tetsudō Kabushiki Kaisha] Keizai Chōsakai Dainibu Kōgyōhan
Published: 1932
Place of publication: [Shinkyō?
Language: jpn
Number of pages: 70
Subjects: Ammonia industry; Sulfates
Notes: Cover title.

Confidential document (stamped).

On double leaves.