China High purity carbon d 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 23938-2021 High purity carbon dioxide 高纯二氧化碳 - 英文版 |
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GB/T 12690.1-2015 Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 1: Determination of carbon and sulfur contents—High frequency-infrared absorption method 稀土金属及其氧化物中非稀土杂质化学分析方法 第1部分：碳、硫量的测定 高频-红外吸收法 - 英文版 |
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GB/T 23938-2009 High purity carbon dioxide 高纯二氧化碳 - 英文版 |
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