IiThayile zeZSR zenziwe ngeeminerali zendalo ezikhethiweyo njengemathiriyeli ekrwada
Isetyenziselwa ukuhlobisa iindonga zangaphakathi nangaphandle zezakhiwo
IiThayile zeZSR ezinoluhlu olupheleleyo lweenkcukacha ezahlukeneyo
IiThayile ze-ZSR zizimisele ukuqhubeka nokuphucula umgangatho wemveliso
IiThayile ze-ZSR zinezatifikethi ISO9001, ISO14001, EN CE 14411 njl.
