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fittings and flanges for pipeline transportation systems - Part 4: Cold bends (Chinese: 石油天然气工业 管道输送系统用弯管、管件和法兰 第4部分：冷弯管)
GB/T 45570-2025_Chinese: General technology requirements for optical gyroscope (Chinese: 光学陀螺仪通用技术要求)
GB/T 44868-2024_Chinese: Green product assessment - Electric toys (Chinese: 绿色产品评价 电玩具)
GB/T 41780
2-2024_Chinese: Cybersecurity technology - Hash-functions - Part 2: Hash-functions using a block cipher (Chinese: 网络安全技术 杂凑函数 第2部分：采用分组密码的杂凑函数)
GB/T 37977.49-2023 Chinese PDF (GB/T37977.49-2023) GB/T 18760-2025 fittings and flanges for pipelineGB T 37977. 49 2023_Chinese: Electrostatics Part 4 9: Standard test methods for specific applications Garments (Chinese: 4 9: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 37977. 49 2023
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