Ukutyalwa kwangaphambili kokutyabeka kubandakanya ukuthambisa (ukunciphisa), ukususwa komhlwa, ukuphosphotha amacandelo amathathu.I-Phosphating yikhonkco eliphakathi, ukuchithwa kunye nokususwa kwe-rust yinkqubo yokulungiselela ngaphambi kokuba i-phosphating, ngoko ekusebenzeni kwemveliso, akufanele sithathe kuphela umsebenzi we-phosphating njengento ekugxilwe kuyo, kodwa kwakhona siqale kwiimfuno zomgangatho we-phosphating, senze umsebenzi omhle ukongeza ukususwa kweoli kunye nomhlwa, ngokukodwa ingqalelo kwimpembelelo efanayo phakathi kwabo.