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GB/T 12690.20-2024 Chinese PDF (GB /T12690.20-2024)
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GB/T 12690.20-2024 Chinese PDF (GB /T12690.20-2024)
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GB/T 12690.20-2024 Chinese PDF (GB /T12690.20-2024)GB T 12690. 20 2024_Chinese: Chemical analysis methods for non rare earth impurities of rare earth metals and their oxides Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides Ion chromatography method (Chinese: 20 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 12690. 20 2024
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GB/T 12690.20-2024 Chinese PDF (GB /T12690.20-2024)
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