GB 45669.4-2025 Chinese PDF GB 15269-2025 English versions: GB 25596-2025

Name: GB 45669.4-2025 Chinese PDF GB 15269-2025 English versions: GB 25596-2025
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English versions: GB 25596-2025

English versions: GB 31604

1编码规则第1部分:基本编码规则（BER）、正则编码规则（CER）和非典型编码规则（DER）规范)

English versions: GB 19272-2024

5-2025_Chinese: Uncut finished spectacle lenses - Part 5: Abrasion-resistant of surfaces test methods (Chinese: 眼镜镜片第5部分：表面耐磨试验方法)

GB 45669.4-2025 Chinese PDF GB 15269-2025 English versions: GB 25596-2025GB 45669. 4 2025_Chinese: Norm of water intake for industry in the Yellow River basin Part 4: Cement (Chinese: 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 45669. 4 2025

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