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20-2023_Chinese: Mechanical structures for electrical and electronic equipment - Dimensions of mechanical structures of the 482
GB/T 19228
YY/T 1941-2024_Chinese: Robotically-assisted laparoscopic surgical system (Chinese: 采用机器人技术的腹腔内窥镜手术系统)
English versions: GB/T 45202-2025
GB/T 2684-2025_Chinese: Test methods for foundry sands and molding mixtures (Chinese: 铸造用砂及混合料试验方法)
GB/T 21649.1-2024 Chinese PDF (GB/T21649.1-2024) GB/T 45354.1-2025 20-2023_Chinese: Mechanical structures for electricalGB T 21649. 1 2024_Chinese: Particle size analysis Image analysis methods Part 1: Static image analysis methods (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21649. 1 2024
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