I-contro ye-raw material: sigcina ubudlelwane obuhle kakhulu nababoneleli bendawo ekrwada.Ngobungakanani bokuthenga obukhulu kunye nozinzile, ababoneleli baqinisekisa ukubonelela ngezinto ezisemgangathweni ezizinzileyo kuthi.Kwaye balungiselela umntu onoxanduva KUPHELA lokuthengwa kwezinto kunye nokuhanjiswa kwethu ukuqinisekisa umgangatho okhuselekileyo.