GB/T 1149.17-2023 Chinese PDF (GB/T1149.17-2023) GB/T 44961-2024 GB/T 1231-2024_Chinese: High strength bolts

GB/T 1231-2024_Chinese: High strength bolts with large hexagon head assemblies for steel structures (Chinese: 钢结构用高强度大六角头螺栓连接副)

English versions: GB/T 45391-2025

English versions: GB 28050-2025

1-2025_Chinese: Plastics - Determination of tensile properties - Part 1: General principles (Chinese: 塑料 拉伸性能的测定 第1部分：总则)

GB 43469-2023_Chinese: Portable aviation child restraint device (Chinese: 便携式机上儿童限制装置)

GB/T 1149.17-2023 Chinese PDF (GB/T1149.17-2023) GB/T 44961-2024 GB/T 1231-2024_Chinese: High strength boltsGB T 1149. 17 2023_Chinese: Internal combustion engines Piston rings Part 17: Coil spring loaded oil control rings made of steel (Chinese: 17) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 1149. 17 2023