China Vacuum technology—Po GB Standards Search Result

and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within 1~3 days.
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 .


	GB/T 33633-2017 Vacuum technology—Positive-displacement vacuum pump—Measurement of water vapour tolerance 真空技术容积真空泵水蒸气容限的测量 - 中英文版

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