GB/T 4447-2025 Chinese PDF (GB /T4447-2025) GB/T 44940-2024 3-2024_Chinese: Low-voltage electrical installations -

3-2024_Chinese: Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors (Chinese: 低压电气装置 第5-54部分：电气设备的选择和安装 接地配置和保护导体)

GB/T 28807

5-2024_Chinese: Textile machinery and accessories - Beams for winding - Part 5: Sectional beams for warp knitting machines (Chinese: 纺织机械与附件 经轴 第5部分：经编机用分段整经轴)

1-2024_Chinese: Non-active surgical implants - Osteosynthesis and joint replacement implants - Part 1: Particular requirements for osteosynthesis implants (Chinese: 无源外科植入物 骨接合与关节置换植入器械 第1部分：骨接合植入器械特殊要求)

English versions: GB/T 31379

GB/T 4447-2025 Chinese PDF (GB /T4447-2025) GB/T 44940-2024 3-2024_Chinese: Low-voltage electrical installations -GB T 4447 2025_Chinese: Ships and marine technology Sea going vessels Windlasses and anchor capstans (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 4447 2025