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GB/T 30547-2023 Chinese PDF (GB/T30547-2023) GB/T 27534.3-2025 GB/T 45316-2025_Chinese: Determination of piperine

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GB/T 45316-2025_Chinese: Determination of piperine content - Spectrophotometric method (Chinese: 胡椒碱含量的测定 分光光度法)

English versions: GB/T 17913-2024

4-2023_Chinese: Rotary shaft lip-type seals incorporating elastomeric sealing elements - Part 4: Performance test procedures (Chinese: 密封元件为弹性体材料的旋转轴唇形密封圈 第4部分：性能试验程序)

English versions: GB/T 45608-2025

GB/T 30547-2023 Chinese PDF (GB/T30547-2023) GB/T 27534.3-2025 GB/T 45316-2025_Chinese: Determination of piperineGB T 30547 2023_Chinese: Filter resistor for high voltage direct current (HVDC) transmission system (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 30547 2023

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