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2-2025_Chinese: Uncut finished spectacle lenses - Part 2: Power-variation (Chinese: 眼镜镜片 第2部分：渐变焦)
GB/T 45021
English versions: GB/T 45102-2024
4-2025_Chinese: Norm of water intake for industry in the Yellow River basin - Part 4: Cement (Chinese: 黄河流域工业用水定额 第4部分：水泥)
GB/T 44977-2024 Chinese PDF (GB /T44977-2024) GB/T 44919-2024 2-2025_Chinese: Uncut finished spectacle lensesGB T 44977 2024_Chinese: Specification for security of positioning service terminal of reference stations using global navigation satellite system (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 44977 2024
US$ 49.00
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US$ 209.50
US$ 105.00
US$ 49.00
US$ 169.50
US$ 119.50
US$ 169.50
US$ 179.00
US$ 159.50
US$ 199.50
US$ 174.50
