GB/T 28572-2025 Chinese PDF (GB /T28572-2025) GB/T 30843.1-2024 power supply units and combinations

power supply units and combinations thereof - Part 14: Particular requirements and tests for auto-transformers and power supply units incorporating auto-transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第14部分：一般用途自耦变压器和内装自耦变压器的电源装置的特殊要求和试验)

2-2024_Chinese: Lighting of work places - Part 2: Lighting requirements for safety and security of outdoor work places (Chinese: 工作场所照明 第2部分：室外作业场所的安全保障照明要求)

GB/T 18376

GB/T 18649-2024_Chinese: Diagnostic techniques for contagious bovine pleuropneumonia (Chinese: 牛传染性胸膜肺炎诊断技术)

5-2025_Chinese: Uncut finished spectacle lenses - Part 5: Abrasion-resistant of surfaces test methods (Chinese: 眼镜镜片 第5部分：表面耐磨试验方法)

GB/T 28572-2025 Chinese PDF (GB /T28572-2025) GB/T 30843.1-2024 power supply units and combinationsGB T 28572 2025_Chinese: Specification and technical parameters of inlet valves for large and medium sized hydraulic turbines (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28572 2025