GB/T 45223-2025 Chinese PDF (GB /T45223-2025) GB/T 45176-2024 English versions: GB/T 20717-2024

English versions: GB/T 20717-2024

English versions: GB/T 44943-2024

GB/T 45267-2025_Chinese: Juvenile products - General technical requirements for swimming accessories (Chinese: 婴童用品 游泳运动配套用品通用技术要求)

GB/T 44978-2024_Chinese: Smart community infrastructures - Smart transportation for rapid transit in and between cities and urban agglomerations (Chinese: 智慧城市基础设施 连接城市和城市群的快速智慧交通)

English versions: GB/T 44957-2024

GB/T 45223-2025 Chinese PDF (GB /T45223-2025) GB/T 45176-2024 English versions: GB/T 20717-2024GB T 45223 2025_Chinese: Technical specification for communication architecture and interface of low voltage auxiliary power systems for electric power stations and substations (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45223 2025