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English versions: GB/T 18233
English versions: GB/T 44956-2024
GB/T 30268
4-2025_Chinese: Assembled spectacles - Part 4: Multifocal and power-variation near-vision spectacles (Chinese: 配装眼镜 第4部分：多焦和渐变焦老视成镜)
GB/T 23276-2024 Chinese PDF (GB/T23276-2024) GB/T 45190-2025 English versions: GB/T 18233GB T 23276 2024_Chinese: Method for chemical analysis of palladium compounds Determination of palladium content Complexometric titration using butanedione dioxime releasing EDTA and gravimetric method (Chinese: EDTA ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 23276 2024
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