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English versions: GB/T 3917
506-2025_Chinese: Laser display devices - Part 5-6: Measuring methods for optical performance of projection screens (Chinese: 激光显示器件 第5-6部分：投影屏幕光学性能测试方法)
GB/T 24217-2025_Chinese: Washing oil (Chinese: 洗油)
validation and maintenance of a sterilization process (Chinese: 医疗产品灭菌 微生物学方法 第2部分：用于灭菌过程的定义、确认和维护的无菌试验)
GB/T 45016-2024_Chinese: Test methods for mechanical automatic tensioner of accessory belt drive system of engine (Chinese: 发动机附件带传动系统机械式自动张紧轮试验方法)
GB/T 45257-2025 Chinese PDF (GB /T45257-2025) GB/T 16262.1-2025 English versions: GB/T 3917GB T 45257 2025_Chinese: Press and publication Knowledge services Extraction and marking up of knowledge element (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45257 2025
