GB/T 45393.4-2025 Chinese PDF (GB /T45393.4-2025) GB/T 33223-2024 GB/T 22459

GB/T 22459

GB 45185-2024_Chinese: Optometry products - Safety technical specifications of finished spectacles (Chinese: 眼视光产品 成品眼镜安全技术规范)

English versions: GB/T 45362-2025

GB/T 45206-2025_Chinese: Code of practice for production of Daodi herbs - Danshen (Chinese: 道地药材生产技术规程 丹参)

power supply units and combinations thereof - Part 14: Particular requirements and tests for auto-transformers and power supply units incorporating auto-transformers for general applications (Chinese: 变压器、电抗器、电源装置及其组合的安全 第14部分：一般用途自耦变压器和内装自耦变压器的电源装置的特殊要求和试验)

GB/T 45393.4-2025 Chinese PDF (GB /T45393.4-2025) GB/T 33223-2024 GB/T 22459GB T 45393. 4 2025_Chinese: Information technology Building information model(BIM) software Part 4: Mesh model (Chinese: BIM 4) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45393. 4 2025