GB 26920-2024 Chinese PDF GB/T 45251-2025 GB/T 45504-2025_Chinese: Nanotechnologies - Nanostructured

GB/T 45504-2025_Chinese: Nanotechnologies - Nanostructured porous alumina as catalyst support for vehicle exhaust emission control - Characteristics and measurement methods (Chinese: 纳米技术 汽车尾气排放控制用纳米结构多孔氧化铝催化剂载体 特性和测量方法)

GB/T 24091-2024_Chinese: Adaptation to climate change - Guidelines on vulnerability

English versions: GB/T 1149

GB/T 23453-2025_Chinese: Natural limestone slab for building (Chinese: 天然石灰石建筑板材)

English versions: GB/T 10932-2024

GB 26920-2024 Chinese PDF GB/T 45251-2025 GB/T 45504-2025_Chinese: Nanotechnologies - NanostructuredGB 26920 2024_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for commercial refrigerating appliances (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 26920 2024