GB/T 45511-2025 Chinese PDF (GB /T45511-2025) GB/T 44872-2024 English versions: GB/T 45561

English versions: GB/T 45561

English versions: GB/T 45454-2025

power supply units and combinations thereof - Part 2: Particular requirements and tests for separating transformers and power supply units incorporating separating transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第2部分：一般用途分离变压器和内装分离变压器的电源装置的特殊要求和试验)

600-2025_Chinese: Geometrical product specifications (GPS) - Surface texture: Areal - Part 600: Metrological characteristics for areal topography measuring methods (Chinese: 产品几何技术规范（GPS） 表面结构：区域法 第600部分：区域形貌测量方法的计量特性)

English versions: GB/T 45275-2025

GB/T 45511-2025 Chinese PDF (GB /T45511-2025) GB/T 44872-2024 English versions: GB/T 45561GB T 45511 2025_Chinese: Industrial field communication quality inspection General technical specifications (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45511 2025