●Products Introduction：
　　 The principle of 2-grade hyperfiltration devicd is to adjust the PH-value of water through first grade device, then let second grade high pressure pump delivery liquid into the second grade hyperfil system to treat and get the cleaned water at lawt The desalt ratio of the 1-trade hyperfittration system is over 99.5% It needn't flow through the way of direct exchange　treatment and it can be up to the standards of bottled drinking water(GB1723-1998).