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China Vapour vacuum pumps GB Standards Search Result

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GB/T 21272-2007
Vapour vacuum pumps - Measurement of performance characteristics Measurement of back-streaming rate of pump fluid and the heating time
蒸汽流真空泵性能测量方法 泵液返流率和加热时间的测量 - 中英文版
GB/T 19955.2-2005
Vapour vacuum pumps-Measurement of performance characteristics Part2:Measurement of critical backing pressure
蒸汽流真空泵性能测量方法 第2部分:临界前级压力的测量 - 中英文版
GB/T 19955.1-2005
Vapour vacuum pumps-Measurement of performance characteristics Part1:Measurement of volume rate of flow(pumping speed)
蒸汽流真空泵性能测量方法 第1部分:体积流率(抽速)的测量 - 中英文版

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