GB/T 31211.2-2024 Chinese PDF (GB/T31211.2-2024) GB/T 21649.1-2024 English versions: GB/T 2879-2024

English versions: GB/T 2879-2024

English versions: GB/T 45595-2025

GB/T 45146-2024_Chinese: Road vehicles - Air and air/hydraulic braking systems of motor vehicles test procedures (Chinese: 道路车辆 气压及气顶液制动系统试验方法)

8-2025_Chinese: High-voltage alternating-current fuses - Part 8: Application guide (Chinese: 高压交流熔断器 第8部分：应用导则)

English versions: GB/T 23453-2025

GB/T 31211.2-2024 Chinese PDF (GB/T31211.2-2024) GB/T 21649.1-2024 English versions: GB/T 2879-2024GB T 31211. 2 2024_Chinese: Non destructive testing Ultrasonic guided wave testing Part 2: Test method based on magnetostrictive transduction (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 31211. 2 2024