Anthu ena angaganize kuti mabatani amtundu wa silicone akutali siosiyana kwenikweni ndi pamwamba. Poyang'ana koyamba, onse ndi mabatani a silicone, ndipo palibe chomwe chimamvekera chifukwa chogwiritsa ntchito. Kenako, kuchokera pakuwona kukana kwa dothi ndi kuvala resistan ...
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