GB 30253-2024 Chinese PDF GBZ45388.1-2025 72-2024_Chinese: Communication networks and systems

72-2024_Chinese: Communication networks and systems for power utility automation - Part 7-2: Basic information and communication structure - Abstract communication service interface(ACSI) (Chinese: 电力自动化通信网络和系统 第7-2部分：基本信息和通信结构 抽象通信服务接口（ACSI）)

GB/T 26718-2024_Chinese: Technical requirements for safety system of urban mass transit (Chinese: 城市轨道交通安全防范系统技术要求)

GB 5908-2024_Chinese: Flame arrester (Chinese: 阻火器)

English versions: GB/T 45552-2025

GB 30253-2024 Chinese PDF GBZ45388.1-2025 72-2024_Chinese: Communication networks and systemsGB 30253 2024_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for permanent magnet synchronous motors (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 30253 2024