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English versions: GB/T 31838
three-point and four-point methods (Chinese: 纸和纸板 弯曲挺度的测定 两点法、三点法和四点法的通用原理)
GB 21252-2023_Chinese: Norm of energy consumption for unit production of architecture and sanitary ceramics and alumina grinding ball (Chinese: 建筑卫生陶瓷和耐磨氧化铝球单位产品能源消耗限额)
English versions: GB/T 45604-2025
English versions: GB/T 11730-2025
GB/T 7939.1-2024 Chinese PDF (GB/T7939.1-2024) GB/T 29246-2023 English versions: GB/T 31838GB T 7939. 1 2024_Chinese: Connections for hydraulic fluid power Test methods Part 1: Connectors (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 7939. 1 2024
