GB/T 45519-2025 Chinese PDF (GB /T45519-2025) GB/T 45305.4-2025 GB/T 45538-2025_Chinese: Determination of plant

GB/T 45538-2025_Chinese: Determination of plant extracts antioxidant activity - Thin layer chromatography method (Chinese: 植物提取物抗氧化活性测定 薄层色谱法)

21-2025_Chinese: Test method for noise of household and similar electrical appliances - Part 21: Particular requirements for oral hygiene appliances (Chinese: 家用和类似用途电器噪声测试方法 第21部分：口腔卫生器具的特殊要求)

GB/T 45257-2025_Chinese: Press and publication - Knowledge services - Extraction and marking up of knowledge element (Chinese: 新闻出版 知识服务 知识元提取与标引)

English versions: GB/T 45449-2025

GB/T 45088-2024_Chinese: Code of practice for forest tree harvesting (Chinese: 林木采伐技术规程)

GB/T 45519-2025 Chinese PDF (GB /T45519-2025) GB/T 45305.4-2025 GB/T 45538-2025_Chinese: Determination of plantGB T 45519 2025_Chinese: Textiles Fiber quantitative analysis Intelligent identification method using microscope (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45519 2025