12. Spandex: Synthetic fiber, ndiko kuti, chimango pachimake, ali ndi makhalidwe a elongation mkulu, elasticity mkulu, ndi bwino asidi kukana, alkali kukana, kuwala kukana, ndi abrasion kukana. 13. Polypropylene: Polypropylene ndi dzina lokhala ndi mikhalidwe yaku China. M'malo mwake, iyenera ...
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