I-1.Isetshenziselwa ikakhulukazi i-firebrick, i-electroplating, ukukhishwa kwama-electrolytic kwensimbi ephezulu ye-chromium ye-chromium.
2.Kusetshenziswa futhi kudayi e-organic, irabha yokwenziwa, ukucwilisa uwoyela, i-catalyst kanye nezinye izimboni.