Izivunguvungu zepulasitiki ezicindezelwe zisekelwe ku-HDPE njengempahla eluhlaza yokukhiqiza, ikakhulukazi esetshenziswa esakhiweni sikasimende esigxilile ngemuva, imbobo yenduku kathayi, evalwe kahle, akukho ukuvuza kwamanzi, ukuqina kwendandatho ephezulu, imingcele encane yokungqubuzana, ukumelana nokuguga, ...
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