GB/T 2471-2024 Chinese PDF (GB/T2471-2024) GB/T 45513-2025 GB/T 28417-2023_Chinese: Carbon bearing steel

GB/T 28417-2023_Chinese: Carbon bearing steel (Chinese: 碳素轴承钢)

GB/T 15934-2024_Chinese: Electrical accessories - Cord sets and interconnection cord sets (Chinese: 电器附件 电线组件和互连电线组件)

grinding and finishing equipment for casting cleaning - Safety technical specifications (Chinese: 铸造机械 铸件清理用切割、磨削和精整设备 安全技术规范)

English versions: GB/T 18414-2025

GB/T 2471-2024 Chinese PDF (GB/T2471-2024) GB/T 45513-2025 GB/T 28417-2023_Chinese: Carbon bearing steelGB T 2471 2024_Chinese: Preferred number series for resistors and capacitors (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2471 2024