GB/T 5019.5-2023 Chinese PDF (GB/T5019.5-2023) GB/T 22369-2024 GB 21343-2023_Chinese: The norm of

GB 21343-2023_Chinese: The norm of energy consumption per unit production of calcium carbide

2-2024_Chinese: Determination of certain substances in electrical and electronic products - Part 2: Disassembly

GB/T 19752-2024_Chinese: Hybrid electric vehicles - Power performance - Test method (Chinese: 混合动力电动汽车 动力性能 试验方法)

GB/T 45649-2025_Chinese: Technical guidelines for the application of coaxial turbine units in metallurgical waste heat and pressure energy recovery (Chinese: 冶金余热余压能量回收同轴机组应用技术指南)

2-2024_Chinese: Cybersecurity technology - Entity authentication - Part 2: Mechanisms using authenticated encryption (Chinese: 网络安全技术 实体鉴别 第2部分：采用鉴别式加密的机制)

GB/T 5019.5-2023 Chinese PDF (GB/T5019.5-2023) GB/T 22369-2024 GB 21343-2023_Chinese: The norm ofGB T 5019. 5 2023_Chinese: Insulating materials based on mica Part 5: Rigid mica materials for heating equipment (Chinese: 5) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 5019. 5 2023