Ngaphambili: Iingxaki ezihlangabezwane nobunjineli bokusetyenziswa kobunjineli be-polycarboxylicylic acid inciphise kunye nezisombululo zabo Okulandelayo: Ukusetyenziswa kwe-arhente yokunciphisa amanzi IXESHA LOKUQALA: IJUL-01-2021