I-raw material contro: sigcina ubudlelwano obuhle kakhulu nabaphakeli bendawo bempahla eluhlaza.Ngenani elikhulu nelizinzile lokuthenga, abahlinzeki bayaqinisekisa ukuthi bazosiphathela impahla enekhwalithi ezinzile.Futhi bahlele umuntu onomthwalo KUPHELA wokuthenga kwethu okokusebenza nokulethwa ukuze aqinisekise ikhwalithi ephephile.