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Propylene C3h6 Propene R1270 50L 99.5% Industrial Refrigerant Polymer Feedstock Gas Cylinder, Find Details and Price about Propylene Gas Propene Gas from Propylene C3h6 Propene R1270 50L 99.5% Industrial Refrigerant Polymer Feedstock Gas Cylinder - Chengdu Taiyu Industrial Gases Co., Ltd.