GB/T 2684-2025 Chinese PDF (GB /T2684-2025) GB/T 18916.65-2024 7-2025_Chinese: Textiles - Quantitative chemical

7-2025_Chinese: Textiles - Quantitative chemical analysis - Part 7: Mixtures of polyamide with certain other fibers (method using formic acid) (Chinese: 纺织品 定量化学分析 第7部分：聚酰胺纤维与某些其他纤维的混合物（甲酸法）)

GB/T 30425-2025_Chinese: Water cooling equipment for converter valves for high voltage direct current(HVDC) ower transmission (Chinese: 高压直流输电换流阀水冷却设备)

English versions: GB/T 13522-2024

GB/T 20972

GB/T 15604-2024_Chinese: Terminology for dust explosion prevention and protection (Chinese: 粉尘防爆术语)

GB/T 2684-2025 Chinese PDF (GB /T2684-2025) GB/T 18916.65-2024 7-2025_Chinese: Textiles - Quantitative chemicalGB T 2684 2025_Chinese: Test methods for foundry sands and molding mixtures (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2684 2025