▎ 摘　　要

NOVELTY - Pre-treatment solution comprises 0.5-1.5 wt.% polyfunctional alkyl phosphate, 2-5 wt.% zinc oxide, 0.5-1 wt.% sodium molybdate, 1-5 wt.% tartaric acid, 1-3 wt.% metal surface oxide, 0.1-0.5 wt.% graphene oxide, 1-2 wt.% citric acid and balanced amount of water. USE - Pre-treatment solution used for metal surface. ADVANTAGE - The pre-treatment solution has corrosion resistance property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for using pre-treatment solution, which involves: (A) washing the metal surface with acid; (B) soaking the obtained substrate in a pre-treatment solution; and (C) drying the obtained product.