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正文摘要:FZ/T 50009.4—2007 中空滌綸短纖維膨松性和纖維彈性試驗方法，PDF。 9 n% _- U P5 R5 G" e: [* Q% zTesting method for bulkiness performance of hollow PET staple fibres * c6 x) N% \ N1 ... |
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