Ishidi lekhadi le PVC liwukhiye ophakathi nendawo ku-ID, ubulungu kanye namakhadi RFID , anemikhiqizo yase-China ethatha ingxenye yemakethe yomhlaba wonke engaphezu kuka-80% ngenxa yokusebenza okuphezulu nochungechunge lwezimboni oludidiyelwe. Lesi sihloko siklelisa abakhiqizi abangu-15 baseShayina abahamba phambili abanezikhundla ezihlukene kanye namathiphu okukhetha abahlinzeki. Abahlinzeki baseShayina bangakwazi ukuhlangabezana nezidingo zezinto ezingavuthiwe zabenzi bamakhadi bomhlaba wonke.
