GB/T 21974-2024 Chinese PDF (GB/T21974-2024) GB/T 1149.11-2023 GB/T 20604-2025_Chinese: Natural gas -

GB/T 20604-2025_Chinese: Natural gas - Vocabulary (Chinese: 天然气 词汇)

English versions: GB/T 45515-2025

3-2023_Chinese: Secondary coating materials used for optical fibre - Part 3: Modified polycarbonate (Chinese: 光纤用二次被覆材料 第3部分：改性聚碳酸酯)

GB/T 45237-2025_Chinese: Dangerous goods - Test method of vent sizing for vessel of self-reactive substances and organic peroxides (Chinese: 危险货物 自反应物质和有机过氧化物容器排气孔尺寸确定的试验方法)

English versions: GB/T 45430-2025

GB/T 21974-2024 Chinese PDF (GB/T21974-2024) GB/T 1149.11-2023 GB/T 20604-2025_Chinese: Natural gas -GB T 21974 2024_Chinese: YZRW series eddy current braking wound rotor three phase induction motors for crane and metallurgical applications Technical specification (frame size 112315) (Chinese: YZRW 112315) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21974 2024