Iimodeli zeemveliso ze-PVC ze-polyvinyl chloride zihlulwe zibe yi-PVC-SG3, i-PVC-SG5, i-PVC-SG8.Iimodeli zemveliso ezahlukeneyo zineendlela ezahlukeneyo zokusetyenziswa. Ukuhlelwa kokusetyenziswa kwemodeli ethile kukuba: I-SG-3 yeyefilimu, ithumbu, izikhumba, iintambo zocingo kunye nezinye iimveliso ezithambileyo eziqhelekileyo. SG-5 yeye...
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