... 2-3 us/cm,EDI ≤ 0.5us/cm (base on raw water ≤ 300us/cm. 4,imported parts account for 90%. Water ... food industrial area, bottled water area, beverage filling area, provide pure water for filling in food, beverage or medicine making area ... for killing germs, bacteria, so that keeping pure water fresh,no bacteria, so the pure water can be stored in PET/PC bottles ...