恒安集团

恒安集团 appears in 175.女性卫生用品的社会史：比想象中更精彩！ as the Chinese company that the episode says imported a Japanese sanitary-pad production line in 1982 and later launched the 安乐 brand. The mention is brief, but it marks the source’s clearest bridge from Japan’s Menstrual Product Social History to China’s under-documented sanitary-product history.

The page should therefore be read as a placeholder for future Chinese sources. The episode explicitly says Chinese-language material on sanitary-product development is thinner than the Japanese case and would benefit from more detailed research.

Connections

• 安乐 - brand named in the source.
• China and Japan - production-line transfer context.
• Menstrual Product Social History and Period Poverty - broader category questions for future sources.