GB/T 9869.1-2025 Chinese PDF (GB /T9869.1-2025) GB 25596-2025 GB/T 45615-2025_Chinese: Systems and software

GB/T 45615-2025_Chinese: Systems and software engineering - Methods and tools for model-based systems and software engineering (Chinese: 系统与软件工程 基于模型的系统与软件工程方法和工具)

GB/T 44991-2025_Chinese: Railway applications - Testing of rolling stock on completion of construction and before entry into service (Chinese: 轨道交通 机车车辆制成后投入使用前的试验方法)

English versions: GB/T 45338-2025

storage and transportation system (Chinese: 粮食加工、储运系统粉尘防爆安全规范)

GB/T 45159

GB/T 9869.1-2025 Chinese PDF (GB /T9869.1-2025) GB 25596-2025 GB/T 45615-2025_Chinese: Systems and softwareGB T 9869. 1 2025_Chinese: Rubber Measurement of vulcanization characteristics using curemeters Part 1: Introduction (Chinese: 1: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 9869. 1 2025