GB/T 32592-2023 Chinese PDF (GB/T32592-2023) GB/T 39733-2024 English versions: GB/T 45339-2025

English versions: GB/T 45339-2025

2-2025_Chinese: Connections for hydraulic fluid power - Quick-action couplings - Part 2: Flush-face type (Chinese: 液压传动连接 快换接头 第2部分：平面型)

English versions: GB/T 17732-2023

GB/T 14478-2025_Chinese: Basic technical specification of inlet valves for large and medium-sized hydraulic turbines (Chinese: 大中型水轮机进水阀门基本技术规范)

7-2024_Chinese: Semiconductor devices - Part 5-7: Optoelectronic devices - Photodiodes and phototransistors (Chinese: 半导体器件 第5-7部分：光电子器件 光电二极管和光电晶体管)

GB/T 32592-2023 Chinese PDF (GB/T32592-2023) GB/T 39733-2024 English versions: GB/T 45339-2025GB T 32592 2023_Chinese: Railway applications Current collection systems Requirements for and validation of measurements of the dynamic interaction between pantograph and overhead contact line (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 32592 2023