GB/T 45311-2025 Chinese PDF (GB /T45311-2025) GB/T 23453-2025 GB/T 30565-2025_Chinese: Non-destructive testing -

GB/T 30565-2025_Chinese: Non-destructive testing - Eddy current testing - General principles (Chinese: 无损检测 涡流检测 总则)

English versions: GB/T 17554

3-2025_Chinese: Household electric direct-acting room heaters - Methods for measuring performance - Part 3: Additional provisions for the measurement of the radiation efficiency (Chinese: 家用直接作用式房间电加热器 性能测试方法 第3部分：辐射效率测量的附加规定)

English versions: GB/T 45316-2025

GB/T 45311-2025 Chinese PDF (GB /T45311-2025) GB/T 23453-2025 GB/T 30565-2025_Chinese: Non-destructive testing -GB T 45311 2025_Chinese: Tidal energy converter Sea trial technical requirements (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45311 2025