GB/T 44991-2025 Chinese PDF (GB /T44991-2025) GB 32047-2025 GB/T 44974-2024_Chinese: Technical measures to

GB/T 44974-2024_Chinese: Technical measures to trade - Vocabulary (Chinese: 技术性贸易措施 术语)

English versions: GB/T 29772-2024

English versions: GB/T 44979-2024

GB/T 14666-2025_Chinese: Terms for analytical chemistry (Chinese: 分析化学术语)

40-2024_Chinese: Specifications for optical fibre test methods - Part 40: Measurement methods and test procedures for transmission characteristics - Attenuation (Chinese: 光纤试验方法规范 第40部分：传输特性的测量方法和试验程序 衰减)

GB/T 44991-2025 Chinese PDF (GB /T44991-2025) GB 32047-2025 GB/T 44974-2024_Chinese: Technical measures toGB T 44991 2025_Chinese: Railway applications Testing of rolling stock on completion of construction and before entry into service (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 44991 2025