GB/T 14308-2023 Chinese PDF (GB/T14308-2023) GB/T 45217-2025 GB/T 17643-2025_Chinese: Geosynthetics - Polyethylene

GB/T 17643-2025_Chinese: Geosynthetics - Polyethylene geomembrane (Chinese: 土工合成材料 聚乙烯土工膜)

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)

English versions: GB 45187-2024

25-2024_Chinese: Test method for building sealants - Part 25: Determination of resistance to mold (Chinese: 建筑密封材料试验方法 第25部分：耐霉菌性的测定)

English versions: GB/T 27533-2024

GB/T 14308-2023 Chinese PDF (GB/T14308-2023) GB/T 45217-2025 GB/T 17643-2025_Chinese: Geosynthetics - PolyethyleneGB T 14308 2023_Chinese: Classification and accreditation for star rated tourist hotels (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 14308 2023