• Keratin, a kind of protein, exists widely in human and animal organs, including epidermis, hairs, wool, feather, hoof and horn. It is a natural compound material with good properties.

    蛋白蛋白质广泛存在人和动物表皮毛发以及动物的、壳、爪、中,是一类性能优良天然生物复合材料

    youdao

  • Keratin, a kind of protein, exists widely in human and animal organs, including epidermis, hairs, wool, feather, hoof and horn. It is a natural compound material with good properties.

    蛋白蛋白质广泛存在人和动物表皮毛发以及动物的、壳、爪、中,是一类性能优良天然生物复合材料

    youdao

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