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English versions: GB/T 45237-2025
English versions: GB/T 45153-2024
English versions: GB/T 45423-2025
YY/T 0866-2024_Chinese: Total inward leakage(TIL) determination method of protective face mask for medical use (Chinese: 医用防护口罩总泄漏率测试方法)
English versions: GB/T 22389-2023
GB/T 30547-2023 Chinese PDF (GB/T30547-2023) GB/T 44921-2024 English versions: GB/T 45237-2025GB 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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US$ 31.79
US$ 179.50
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