GB 45669.4-2025 Chinese PDF GB 15269-2025 English versions: GB 31661-2025

English versions: GB 31661-2025

English versions: GB/T 13208-2024

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 10770-2025_Chinese: National food safety standard - Canned complementary foods for infants and young children (Chinese: 食品安全国家标准 婴幼儿罐装辅助食品)

GB 11984-2024_Chinese: Technical specification for chlorine safety of chemical industrial enterprises (Chinese: 化工企业氯气安全技术规范)

GB 45669.4-2025 Chinese PDF GB 15269-2025 English versions: GB 31661-2025GB 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