GB/T 15241.1-2023 Chinese PDF (GB/T15241.1-2023) GB/T 45284.5-2025 English versions: GB/T 25246-2025

English versions: GB/T 25246-2025

GBZ44946-2024_Chinese: Hydraulic fluid power - Filter element test methods - Service life evaluation (Chinese: 液压传动 滤芯试验方法 实际寿命评定)

GB/T 41869

English versions: GB/T 45000-2024

1-2024_Chinese: Mechanical structures for electrical and electronic equipment - Outdoor enclosures - Part 1: Design guidelines (Chinese: 电气和电子设备机械结构 户外机壳 第1部分：设计导则)

GB/T 15241.1-2023 Chinese PDF (GB/T15241.1-2023) GB/T 45284.5-2025 English versions: GB/T 25246-2025GB T 15241. 1 2023_Chinese: Ergonomic principles related to mental workload Part 1: General terms and methods for measuring and assessing mental workload (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 15241. 1 2023