backing yarn 中文意思是什麼
backing yarn
解釋
背面經紗-
Standard test methods for backing fabric characteristics of pile yarn floor coverings
絨頭紗線地板覆蓋物的襯布特性的標準試驗方法 -
Yarn is punched through a polypropylene backing with needles and then cut to form “ u ” shaped tufts
草絲在簇絨機上被切割成「 u 」型,針織在聚丙烯底襯上。
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