GB/T 14308-2023 Chinese PDF (GB/T14308-2023) GB/T 45217-2025 GB/T 27967-2024_Chinese: Format of road

GB/T 27967-2024_Chinese: Format of road weather forecast (Chinese: 公路交通气象预报格式)

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/T 45655-2025

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

hardness and iron - Spectrophotometric detection by discrete analysis systems (Chinese: 锅炉用水和冷却水分析方法 磷酸盐、氯化物、硅酸盐、总碱度、酚酞碱度、硬度和铁的测定 基于间断分析系统的分光光度法)

GB/T 14308-2023 Chinese PDF (GB/T14308-2023) GB/T 45217-2025 GB/T 27967-2024_Chinese: Format of roadGB 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