GB/T 2493-2023 Chinese PDF (GB/T2493-2023) GB/T 42151.4-2024 and laboratory use - Part

and laboratory use - Part 17: Particular requirements for equipment intended to be used in educational establishments by children (Chinese: 测量、控制和实验室用电气设备的安全要求 第17部分：教育机构中儿童使用设备的特殊要求)

2-2024_Chinese: Cybersecurity technology - Evaluation criteria for IT security - Part 2: Security functional components (Chinese: 网络安全技术 信息技术安全评估准则 第2部分：安全功能组件)

English versions: GB/T 44999-2024

GB 29449-2024_Chinese: Norm of energy consumption per unit production of tyre and carbon black (Chinese: 轮胎和炭黑单位产品能源消耗限额)

GB/T 2493-2023 Chinese PDF (GB/T2493-2023) GB/T 42151.4-2024 and laboratory use - PartGB T 2493 2023_Chinese: Test method for rotating strength of abrasive products (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 2493 2023