GB/T 45480-2025 Chinese PDF (GB /T45480-2025) GB/T 45211.6-2025 GB/T 45002-2024_Chinese: Method for determining

GB/T 45002-2024_Chinese: Method for determining water retention of cement mortar (Chinese: 水泥胶砂保水率测定方法)

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)

English versions: GB 19578-2024

English versions: GB 19302-2025

2-2024_Chinese: Non-destructive testing - Penetrant testing - Part 2: Testing of penetrang materials (Chinese: 无损检测 渗透检测 第2部分：渗透材料的检验)

GB/T 45480-2025 Chinese PDF (GB /T45480-2025) GB/T 45211.6-2025 GB/T 45002-2024_Chinese: Method for determiningGB T 45480 2025_Chinese: Manganese ores and concentrates Determination of aluminium content Photometric and gravimetric methods (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45480 2025