GB/T 19267.7-2023 Chinese PDF (GB/T19267.7-2023) GB/T 45525.1-2025 71-2024_Chinese: Communication networks and systems

71-2024_Chinese: Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models (Chinese: 电力自动化通信网络和系统 第7-1部分：基本通信结构 原理和模型)

English versions: GB/T 18757-2025

GB 10769-2025_Chinese: National food safety standard - Cereal-based complementary foods for infants and young children (Chinese: 食品安全国家标准 婴幼儿谷类辅助食品)

2-2025_Chinese: Industrial trucks - Sustainability - Part 2: Factors and reporting (Chinese: 工业车辆 可持续性 第2部分：因素和报告)

GBZ45463-2025_Chinese: Method for porosity measurement of thermally sprayed coatings (Chinese: 热喷涂涂层孔隙率的测定)

GB/T 19267.7-2023 Chinese PDF (GB/T19267.7-2023) GB/T 45525.1-2025 71-2024_Chinese: Communication networks and systemsGB T 19267. 7 2023_Chinese: Forensic sciences Physical and chemical examination of trace evidence Part 7: Gas chromatography mass spectrometry (Chinese: 7 ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19267. 7 2023