Iningi lezinhlanga ze-silicone ziyi-cylindrical, kodwa ezinye ziyizikwele, ziyi-oval nezinye ezimise.Ekuphileni kwansuku zonke, kufanele siphuze itiye lobisi, iyogathi, iziphuzo nezinye izikhathi, sisebenzisa utshani bejeli ye-silica kakhulu.Ukwethulwa kotshani bejeli ye-silica: Izinhlobo eziningi ze-silicone ziyi-cylindrical, kodwa ezinye ziyizikwele, ziyi-oval, njll. I...
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