Cation Exchange Resin Lewatit S-80( NA) , Cation Exchange Resin Lewatit S-108( NA) , Carbon Coal Base Picapure, Resin Anion Rohm & Haas Amberlite IRA-402-CL, Carbon Coal Base Picapure, Anion Exchange Resin Lewatit M-500( OH) , Organic Exchange Resin Lewat[28 Sep. 2011, 7:13:35]