Woven from coarse animal hair — including horsehair, camel hair classified as coarse, or similar bristle-type fibers — these fabrics serve industrial and artisanal end uses such as upholstery interlinings, sieve cloth, and traditional craft textiles. The coarse-versus-fine hair distinction is critical at classification: fine animal hair (e.g., cashmere, angora) falls under separate headings, so fiber identification documentation from the supplier is essential. Volume in this category is relatively modest, and sourcing tends to be concentrated among a small number of specialty mills.

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