GB/T 24725-2024 Chinese PDF (GB/T24725-2024) GB 17440-2025 GB/T 16457

GB/T 16457

2-2024_Chinese: Geometrical product specifications(GPS) - Cylindricity - Part 2: Specification operators (Chinese: 产品几何技术规范（GPS） 圆柱度 第2部分：规范操作集)

1-2024_Chinese: Graphical symbols for communication support of the elderly - Part 1: Design principles (Chinese: 老年人交流辅助用图形符号 第1部分：表示规则)

7-2024_Chinese: Manganese ores - Determination of sodium and potassium content - Flame atomic absorption spectrometric method (Chinese: 锰矿石 钠和钾含量的测定 火焰原子吸收光谱法)

GB 45185-2024_Chinese: Optometry products - Safety technical specifications of finished spectacles (Chinese: 眼视光产品 成品眼镜安全技术规范)

GB/T 24725-2024 Chinese PDF (GB/T24725-2024) GB 17440-2025 GB/T 16457GB T 24725 2024_Chinese: Raised pavement markers (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 24725 2024