GB/T 28629-2024 Chinese PDF (GB/T28629-2024) GB/T 19699-2023 GB/T 45308-2025_Chinese: Railway applications -

GB/T 45308-2025_Chinese: Railway applications - Rolling stock - Technical requirements for network time synchronization (Chinese: 轨道交通 机车车辆 网络时间同步技术要求)

GB/T 18757-2025_Chinese: Enterprise modelling and architecture - Requirements for enterprise-referencing architectures and methodologies (Chinese: 企业建模与体系结构 企业参考体系结构与方法论的要求)

English versions: GB 20052-2024

validation and maintenance of a sterilization process (Chinese: 医疗产品灭菌 微生物学方法 第2部分：用于灭菌过程的定义、确认和维护的无菌试验)

English versions: GB/T 45019-2024

GB/T 28629-2024 Chinese PDF (GB/T28629-2024) GB/T 19699-2023 GB/T 45308-2025_Chinese: Railway applications -GB T 28629 2024_Chinese: Methods for chemical analysis of free silicon dioxide in cement clinker (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 28629 2024