I-Polyeter, igama elipheleleyo: I-Bureau ethylene terephthalate, xa ivutha, umbala womlilo uphuzi, kukho umsi omkhulu womsi omnyama, kwaye iphunga elivuthayo alikho likhulu.Emva kokutshisa, zonke ziyi-particles ezinzima.Zezona zisetyenziswa kakhulu, elona xabiso liphantsi, ixesha elide...
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