Usilika wemvelo kamalibhele, uzizwa u-silky kukhanya, uyaphefumula futhi unesikhumba, Umshini wokuhlela oqinile, umugqa oqhubekayo, ikhwalithi ephezulu.
Ukuphrinta kwedijithali, umbala ocebile, umbala okhanyayo, udayi wokuvikela imvelo, uhlangabezana nezindinganiso ze-EU, nombiko wokuhlola we-SGS.