... Adding the carbon dioxide to the solution.3rd, Application domain Integrated circuit, photo-electric, packaging, power station, food, beer drinking, photograph ... oxygen after RO or demineralized water (Instead of deaerator).4th, Equipment list NO.ItemSpecificatiosMaterialQuantityBrand1Membrane contactorCREFLUX-DGM-8040PP2CREFLUX2Transfer pumpCHL12-30SS1CNP3Vacuum pump2BV2060Cast iron1BOZHONG4Vacuum ...