GB/T 7256.4-2023 Chinese PDF (GB/T7256.4-2023) GB/T 29631-2025 English versions: GB/T 3405-2025

English versions: GB/T 3405-2025

English versions: GB/T 43307-2023

GB/T 25020

5-2024_Chinese: Test methods of winding wires - Part 5: Electrical properties (Chinese: 绕组线试验方法 第5部分：电性能)

GB/T 8292-2025_Chinese: Natural rubber latex concentrate - Determination of volatile fatty acid number (Chinese: 浓缩天然胶乳 挥发脂肪酸值的测定)

GB/T 7256.4-2023 Chinese PDF (GB/T7256.4-2023) GB/T 29631-2025 English versions: GB/T 3405-2025GB T 7256. 4 2023_Chinese: Lighting fixtures for civil airport Part 4: Wind direction indicator (Chinese: 4:) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 7256. 4 2023