GB/T 21711.2-2024 Chinese PDF (GB/T21711.2-2024) GB/T 45205-2024 English versions: GB/T 45576-2025

English versions: GB/T 45576-2025

GB/T 19544-2024_Chinese: Classification and general technology requirements of spinal orthoses (Chinese: 脊柱矫形器的分类及通用技术条件)

GB/T 45636-2025_Chinese: Technical specifications for the prevention and control of contact-transmitted infectious diseases at entry-exit points (Chinese: 进境出境经接触传播传染病防控技术规范)

GB/T 30000

GB/T 45341-2025_Chinese: Digital transformation management - Reference architecture (Chinese: 数字化转型管理 参考架构)

GB/T 21711.2-2024 Chinese PDF (GB/T21711.2-2024) GB/T 45205-2024 English versions: GB/T 45576-2025GB T 21711. 2 2024_Chinese: Electromechanical elementary relays Part 2: Reliability (Chinese: 2) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 21711. 2 2024