Lapho ubungozi benqubomgomo bufika, ukubukeka kwemakethe kwawohloka kukonke, futhi imikhiqizo yamakhemikhali yonke yenqaba ukuya kumazinga ahlukahlukene, kanti i-PVC iyisilungiso esiphawuleka kakhulu.Emasontweni amabili nje kuphela, ukwehla kwase kusondele ku-30%.I-PVC yehle ngokushesha ngaphansi kwesilinganiso esihambayo sezinsuku ezingama-60 futhi yabuyela ebangeni lentengo ...
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