GB/T 30553-2023 Chinese PDF (GB/T30553-2023) GB/T 45428-2025 13-2025_Chinese: Electronic railway equipment -

13-2025_Chinese: Electronic railway equipment - Train communication network (TCN) - Part 4-1: The test method of train communication network based on Wire Train Bus(WTB) (Chinese: 轨道交通电子设备 列车通信网络（TCN) 第4-1部分：基于绞线式列车总线（WTB）的列车通信网络试验方法)

GB/T 45466-2025_Chinese: Gas-fired clothes dryer (Chinese: 燃气衣物烘干机)

GB/T 45036-2024_Chinese: Inspection of grain and oils - Technical specification for sample information collection (Chinese: 粮油检验 样品信息采集技术规范)

GB/T 14285-2023_Chinese: Technical code for relaying protection and security automatic equipment (Chinese: 继电保护和安全自动装置技术规程)

English versions: GB/T 31960

GB/T 30553-2023 Chinese PDF (GB/T30553-2023) GB/T 45428-2025 13-2025_Chinese: Electronic railway equipment -GB T 30553 2023_Chinese: High voltage direct current (HVDC) power transmission using voltage sourced converters (VSC) (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 30553 2023