GB/T 2900.65-2023 Chinese PDF (GB/T2900.65-2023) GB/T 21218-2023 GB/T 32077-2025_Chinese: Wind energy generation

GB/T 32077-2025_Chinese: Wind energy generation systems - Pitch system of wind turbines (Chinese: 风能发电系统 风力发电机组变桨距系统)

trailers and combination vehicles mass parameters measurement method (Chinese: 汽车、挂车及汽车列车质量参数测量方法)

GB/T 40425

English versions: GB 19041-2024

GB/T 45356-2025_Chinese: Polypropylene(PP) piping systems for non-pressure buried drainage and sewerage (Chinese: 无压埋地排污、排水用聚丙烯（PP）管道系统)

GB/T 2900.65-2023 Chinese PDF (GB/T2900.65-2023) GB/T 21218-2023 GB/T 32077-2025_Chinese: Wind energy generationGB T 2900. 65 2023_Chinese: Electrotechnical terminology Lighting (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2900. 65 2023