GB/T 23472-2024 Chinese PDF (GB/T23472-2024) GB/T 28892-2024 3-2025_Chinese: Optics and photonics -

3-2025_Chinese: Optics and photonics - Test methods for telescopic systems - Part 3: Telescopic sights (Chinese: 光学和光子学 望远镜系统试验方法 第3部分：瞄准望远镜)

English versions: GB/T 45171-2024

strips and foils (Chinese: 铜铝复合板带箔)

English versions: GB/T 45652-2025

1-2024_Chinese: Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis - Part 1: Determining the inclusion or second-phase constituent content of steels and other metals by automatic (Chinese: 应用自动图像分析测定钢和其他金属中金相组织、夹杂物含量和级别的标准试验方法 第1部分：钢和其他金属中夹杂物或第二相组织含量的图像分析与体视学测定)

GB/T 23472-2024 Chinese PDF (GB/T23472-2024) GB/T 28892-2024 3-2025_Chinese: Optics and photonics -GB T 23472 2024_Chinese: Surface decorated strawboard with impregnated paper (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23472 2024