８）ソーダ工業　第１表　電解能力規模別生産量及び延労働時間（１０、１１月分） ８）ソーダ工業　第１表　電解能力規模別生産量及び延労働時間（１０、１１月分）

The National Archives of Japan's Digital Archive provides access to the descriptions and digitized images of the historical records preserved by the National Archives of Japan. Anytime, anywhere, free...