1.R600a can protect the environment, 2.Low cost, low working pressure, 3.The noise is small . 4.Resonanble price ... Isobutene R600A MF : CH3CH2CH2CH3 Purity : 99% Place of Origin: Dalian, China (Mainland) Model Number: 5.00KG Critical Pressure, Mpa: : 3.61 ... about 20 days SpecificationsRefrigerant Gas R600a can protect the environment, low cost, low working pressure, the noise is small .,1.It has zero ...