彩票APP
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主要特点：当冷媒中含有过量空气时可以准确提示快速、精确，“PASS”和“FAIL”两个指示灯可清楚地显示所测冷媒是否可回收可感应冷媒纯度95%以上冷媒类型：R134a可选用12V直流电源
