China Vapour vacuum pumps GB Standards Search Result |
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2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
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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 |
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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 |
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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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