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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) Note/Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working-hours typically, ASAP English versions: GB/T 45504-2025
