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GB/T 16886.23-2023 Chinese PDF (GB/T16886.23-2023) GB/T 17554.1-2025 English versions: GB/T 45139-2024

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English versions: GB/T 45139-2024

GB/T 45504-2025_Chinese: Nanotechnologies - Nanostructured porous alumina as catalyst support for vehicle exhaust emission control - Characteristics and measurement methods (Chinese: 纳米技术 汽车尾气排放控制用纳米结构多孔氧化铝催化剂载体 特性和测量方法)

English versions: GB/T 18912-2024

English versions: GB/T 6075

GB/T 16886.23-2023 Chinese PDF (GB/T16886.23-2023) GB/T 17554.1-2025 English versions: GB/T 45139-2024GB T 16886. 23 2023_Chinese: Biological evaluation of medical devices Part 23: Tests for irritation (Chinese: 23) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 16886. 23 2023

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