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GB/T 25049-2024 Chinese PDF (GB/T25049-2024) GB/T 22619-2023 3-2023_Chinese: [Including 2025XG1] Mechanical sampling

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3-2023_Chinese: [Including 2025XG1] Mechanical sampling of coal - Part 3: Determination of precision and bias test (Chinese: 煤炭机械化采样 第3部分：精密度测定和偏倚试验)

GB/T 29282-2024_Chinese: Glassine paper (Chinese: 格拉辛纸)

English versions: GB/T 21551

English versions: GB/T 11730-2025

GB/T 25049-2024 Chinese PDF (GB/T25049-2024) GB/T 22619-2023 3-2023_Chinese: [Including 2025XG1] Mechanical samplingGB T 25049 2024_Chinese: Ferronickel (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25049 2024

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