raw silk thread
生糸の生産は日本の伝統産業だ。
Raw silk production is a traditional Japanese industry.
生糸を輸出して外貨を稼いだ。
They earned foreign currency by exporting raw silk.
蚕から生糸を取る作業は繊細だ。
The process of extracting raw silk from silkworms is delicate.