Shíjiǔ shìjì de jǐnshēn xiōngyī cháng yòng jīngxū zuò zhīchēng.
Nineteenth-century corsets often used whalebone for stiffening.
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鲸须 is the keratin filter-plate ('baleen') hanging from the upper jaws of baleen whales (须鲸) — not actually bone. Before plastics, it was prized for corset stays, umbrella ribs, and fishing rods, which drove much of the 19th-century whaling industry.
