Tchipisi ta polyester (polyethylene terephthalate) ndi polymerized kuchokera ku refined terephthalic acid (PTA) ndi ethylene glycol.Maonekedwe ndi mpunga granular, ndipo pali mitundu yambiri (zonse zowala, theka, kuwala kwakukulu, cationic, kutha uku).M'magawo a msika ...
Werengani zambiri