GB/T 25915.16-2024 Chinese PDF (GB/T25915.16-2024) GB/T 17436-2025 and line pipe threads (Chinese:

and line pipe threads (Chinese: 石油天然气工业 套管、油管和管线管螺纹的加工、测量和检验)

13-2025_Chinese: Electronic railway equipment - Train communication network (TCN) - Part 4-1: The test method of train communication network based on Wire Train Bus(WTB) (Chinese: 轨道交通电子设备 列车通信网络（TCN) 第4-1部分：基于绞线式列车总线（WTB）的列车通信网络试验方法)

GBZ45492-2025_Chinese: Course development guide for education about standardization - National quality infrastructure and its application (Chinese: 标准化教育课程建设指南 国家质量基础设施（NQI）及应用)

GB/T 35270-2024_Chinese: Baby carriers (Chinese: 婴幼儿背带（袋）)

GB/T 42126

GB/T 25915.16-2024 Chinese PDF (GB/T25915.16-2024) GB/T 17436-2025 and line pipe threads (Chinese:GB T 25915. 16 2024_Chinese: Cleanrooms and associated controlled environments Part 16: Energy efficiency in cleanrooms and separative devices (Chinese: 16) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25915. 16 2024