CNS 3489-1996 Polyacrylonitrile Staple Fibers (Regular Type)《聚丙烯月青棉状纤维（非收缩型）》.pdf

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CNS 4891-1996 Polyacrylonitrile Staple Fibers (Shrinkable Type)《聚丙烯月青棉状纤维（收缩型）》.pdf

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