GB/T 20834-2024 Chinese PDF (GB/T20834-2024) GB/T 45182-2025 4-2024_Chinese: Power systems management and

4-2024_Chinese: Power systems management and associated information exchange - Data and communications security - Part 4: Profiles including MMS and derivatives (Chinese: 电力系统管理及其信息交换 数据和通信安全 第4部分：包含MMS的协议集及其附件)

English versions: GB/T 34430

3-2024_Chinese: General technical requirements for agricultural internet of things - Part 3: Aquaculture (Chinese: 农业物联网通用技术要求 第3部分：水产养殖)

1-2025_Chinese: Semi-finished spectacle lens blanks - Part 1: Single-vision and multifocal (Chinese: 半成品镜片毛坯 第1部分：单焦和多焦)

GB/T 20834-2024 Chinese PDF (GB/T20834-2024) GB/T 45182-2025 4-2024_Chinese: Power systems management andGB T 20834 2024_Chinese: Technical requirements for motor generator (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20834 2024