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English versions: GB 17761-2024
measuring or monitoring of protective measures - Part 11: Effectiveness of residual current monitors(RCM)in TT
English versions: GB/T 40032
1）第3部分：约束规范)
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: 稀土金属及其氧化物中非稀土杂质化学分析方法 第20部分：稀土氧化物中微量氟、氯的测定 离子色谱法)
GB/T 30771-2024 Chinese PDF (GB /T30771-2024) GB/T 22451-2024 English versions: GB 17761-2024GB T 30771 2024_Chinese: Domestic devitroceram (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 30771 2024
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