GB 4715-2024 Chinese PDF GB/T 24851-2024 GB/T 45636-2025_Chinese: Technical specifications for

GB/T 45636-2025_Chinese: Technical specifications for the prevention and control of contact-transmitted infectious diseases at entry-exit points (Chinese: 进境出境经接触传播传染病防控技术规范)

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)

4-butanediol

GB/T 45565-2025_Chinese: Coding regulations of lithium ion batteries (Chinese: 锂离子电池编码规则)

GB 4715-2024 Chinese PDF GB/T 24851-2024 GB/T 45636-2025_Chinese: Technical specifications forGB 4715 2024_Chinese: Point type smoke detectors using scattered light, transmitted light or ionization (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB 4715 2024