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GB/T 12385-2025_Chinese: Standard test methods for sealability of gaskets for pipe flanges (Chinese: 管法兰用垫片密封性能试验方法)
English versions: GB 17741-2025
GB/T 13748
English versions: GB 5768
GB 17761-2024 Chinese PDF GB/T 10781.3-2025 GB/T 12385-2025_Chinese: Standard test methodsGB 17761 2024_Chinese: Safety technical specification for electric bicycle (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 17761 2024
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