Study on Fish Oil and Fish Meal Production Techniques in Hokkaido

在本研究中，我收集了北海道、萨哈林岛和其他地区的鱼油和鱼粉生产技术和工具的资料和数据，并对其进行了研究。根据对富山县高冈地区的铁锅制造技术的研究所获得的数据，我阐明了铁锅的制造技术，特别是作为北海道和库页岛产品的铁锅“岩石GAMA”，以及从大正时代末到昭和时代初的铁锅销售网络的一部分

In this study, I collected materials and data on fish oil and fish meal production techniques and tools of Hokkaido, Sakhalin and other areas and examined them. From the data obtained from the researches of iron pot manufacturing techniques of Takaoka region, Toyama Prefecture, I clarified manufacturing techniques of an iron pot particularly the iron pot "IWASHI GAMA" which were products for Hokkaido and Sakhalin, and a part of the sale network of iron pots from the end of the Taisho era to the beginning of the Showa era