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GB/T 20429-2024 Chinese PDF (GB/T20429-2024) GB/T 21046-2024 English versions: GB/T 20898-2024

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English versions: GB/T 20898-2024

GB/T 24438

GB/T 28892-2024_Chinese: Surface chemical analysis - X-ray photoelectron spectroscopy - Description of selected instrumental performance parameters (Chinese: 表面化学分析 X射线光电子能谱 选择仪器性能参数的表述)

English versions: GB/T 45342-2025

English versions: GB/T 45554-2025

GB/T 20429-2024 Chinese PDF (GB/T20429-2024) GB/T 21046-2024 English versions: GB/T 20898-2024GB T 20429 2024_Chinese: Installation rule for electrical water heaters (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20429 2024

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