用途: 134A 是目前国际公认的替代CFC-12的主要制冷工质之一，134A 不含氯原子，对大气臭氧层不起破坏作用；具有良好的安全性能（不易燃，不爆炸，无毒，无刺激性，无腐蚀性）；在常温下为无色气体...

用途： 在常温下为无色气体，在自身压力下为无色透明液体，无毒不燃，具有良好的热稳定性和化学稳定性。不腐蚀金属。它是一种低温制冷亮剂，可得到-80℃的制冷温度，是时是生产四氟乙烯的重要原料...

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