GB/T 18721.4-2024 Chinese PDF (GB/T18721.4-2024) GB 28931-2024 GB/T 45562-2025_Chinese: Heavy mechanical -

GB/T 45562-2025_Chinese: Heavy mechanical - Design specifications for automation system (Chinese: 重型机械 自动化系统设计规范)

4-2025_Chinese: IPv4/IPv6 network security protection technical specifications - Part 4: Content delivery network (Chinese: IPv4/IPv6网络安全防护技术规范 第4部分：内容分发网络)

English versions: GB/T 45354

24-2025_Chinese: Iron ores - Determination of total rare earth contents - Arsenazo Ⅲ spectrophotometric method (Chinese: 铁矿石 稀土总量的测定 偶氮胂Ⅲ分光光度法)

English versions: GB 4793-2024

GB/T 18721.4-2024 Chinese PDF (GB/T18721.4-2024) GB 28931-2024 GB/T 45562-2025_Chinese: Heavy mechanical -GB T 18721. 4 2024_Chinese: Graphic technology Prepress digital data exchange Part 4: Wide gamut display referred standard colour image data[Adobe RGB (1998) SCID] (Chinese: 4 [Adobe RGB 1998 SCID]) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18721. 4 2024