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1-2025_Chinese: Optics and photonics - Test methods for telescopic systems - Part 1: Basic characteristics (Chinese: 光学和光子学 望远镜系统试验方法 第1部分：基本特性)
English versions: GB/T 45217-2025
1-2025_Chinese: Assembled spectacles - Part 1: Single-vision and multifocal prescription assembled spectacles (Chinese: 配装眼镜 第1部分：单焦和多焦定配眼镜)
GB/T 44990-2024_Chinese: Test method for interface bonding strength of coating by laser cladding repairing (Chinese: 激光熔覆修复层界面结合强度试验方法)
English versions: GB/T 15022
GB/T 20183.2-2024 Chinese PDF (GB/T20183.2-2024) GB/T 45490-2025 1-2025_Chinese: Optics and photonics -GB T 20183. 2 2024_Chinese: Equipment for crop protection Spraying equipment Part 2: Test methods to assess the horizontal transverse distribution for hydraulic sprayers (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20183. 2 2024
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