... , typically in conjunction with reverse osmosis and other purification devices. 1 stage RO+EDI Double stages RO +EDI Double stages RO ... in Pharmacopoeia in partial countries, so it is needn't use multi-effect water distiller.)Equipment characteristics: Manufacture time: It is a ... set documentations: FAT, SAT, DQ, IQ, OQ, PQ ect. RO water purifier