Spray Process

Hot wash → Pre-oil removal (CT-752B/CT-753) → Main oil removal (CT-752B/CT-753) → Water wash → Water wash → Surface conditioning (BT-10A/BT-10C) → Phosphating (LZ-301/LZ-3301/LZ-3308) → Water wash → Water wash → Pure water wash

Aluminum Chemical Oxidation Process

Oil removal desmutting → Water wash → Water wash → Chemical oxidation (AL-5505/AL-508) → Water wash → Water wash

Impregnating Process

Heating oil removal (CT-765/CT-760C) → Water wash → Water wash → Acid cleaning → Water wash → Iron phosphating (LF-326/LF-327/82-3) → Water wash → Water wash

Room temperature oil removal (CT-765+CT-711/CT-760）→ Water wash → Water wash → Acid cleaning → Water wash → Water wash → Surface conditioning (BT-10A/BT-10C) → Zinc phosphating (LZ-301/LZ-308) → Water wash → Water wash