The dissolving of the water-soluble polyvinyl alcohol(PVA) fiber in the ply yarn is the key process of fabric manufacturing with untwisted yarns.
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美
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無(wú)捻紗的退維工藝是織制無(wú)捻紗織物的關(guān)鍵工藝,退維過(guò)程的控制一直是困擾水溶性維綸伴紡與混紡產(chǎn)品開(kāi)發(fā)的難點(diǎn)。
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国内精品美女A∨在线播放xuan