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2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
GB/T 42222-2022 Glass instruments - Test methods and classification for optical uniformity 玻璃仪器 光学均匀性测试方法与分级 - 中英文版 |
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GB/T 12810-2021 Laboratory glassware—Capacity methods testing and use of volumetric instruments 实验室玻璃仪器 玻璃量器的容量校准和使用方法 - 中英文版 |
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