Sekuwedzera kwemaindasitiri, fluorescent brightener inoshandiswa zvakanyanya mumapurasitiki, kudhinda nekudhaya, pendi neingi, kuwacha, kugadzira mapepa uye mamwe maindasitiri.Parizvino, hapana vagadziri vazhinji vane hunyanzvi mukugadzirwa kwevachena vamiririri muChina.Kune vazhinji vatengi vekupedzisira, chikamu ...
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