1.auto water vending machine 2.coin, IC card payment system 3.UV, ozone sterilizing 4.Capacity: 400 ... heavy metal, organic compound, bacteria etc. harmful substance for human body.2.Ultraviolet ray (UV)24 hours non ... production reflects on the machine, cabinet style decent design, technological process clear, easy for maintainance.5.High quality ... precision can reach 0.01. water vending machine for sale