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GB/T 22939
GB/T 20854-2025_Chinese: Corrosion of metals and alloys - Accelerated testing involving cyclic exposure to salt mist
English versions: GB/T 45162
English versions: GB 25596-2025
YY/T 1930-2024 Chinese PDF (YY /T1930-2024) GB/T 45343-2025 GB/T 22939YY T 1930 2024_Chinese: Medical device clinical evaluation Terms and definitions (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: YY T 1930 2024
