The solvents during the solution penetrate the fibers of the banknote, dissolving ink, dye, or other substances Which may be current. This process effectively lifts the stains and restores the first visual appearance with the currency.Vi?c c?p nh?t ph?n m?m và h? ?i?u hành th??ng xuyên là r?t quan tr?ng ?? b?o v? VPS kh?i các m?i ?e d?a an nin