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4-2024_Chinese: Optics and photonics - Microlens arrays - Part 4: Test methods for geometrical properties (Chinese: 光学和光子学 微透镜阵列 第4部分：几何特性测试方法)
English versions: GB/T 32077-2025
4-2025_Chinese: Geometrical product specifications (GPS) - X-ray three dimensional size measuring machines - Part 4: Evaluation of uncertainty in measurement (Chinese: 产品几何技术规范（GPS） X射线三维尺寸测量机 第4部分：测量不确定度评定)
English versions: GB/T 45281-2025
English versions: GB/T 45131-2025
GB/T 45516-2025 Chinese PDF (GB /T45516-2025) GB/T 45372-2025 4-2024_Chinese: Optics and photonics -GB T 45516 2025_Chinese: Leather and fur Chemical tests Determination of ethylene glycol ethers content (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45516 2025
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