Uqalile ukuthuthukiswa phenalkamine
Uqalile ukuthuthukiswa Polyamide
Uqalile ukuthuthukiswa
Uqalile ukuthuthukiswa polyether
Uqalile ukuthuthukiswa fatty
amanzi
Uqalile ukuthuthukiswa Aromatic amine
Ukukhanya: isixhumanisi sezinto.
