GB/T 19510.207-2023 Chinese PDF (GB/T19510.207-2023) GB/T 45584-2025 GB/T 45345-2025_Chinese: Metallic and other

GB/T 45345-2025_Chinese: Metallic and other inorganic coatings - DC magnetron sputtered silver coatings for engineering purposes - Measurement of coating adhesion (Chinese: 金属及其他无机覆盖层 工程用直流磁控溅射银镀层 镀层附着力的测量)

GB/T 20279-2024_Chinese: Cybersecurity technology - Technical specification for network and terminal separation products (Chinese: 网络安全技术 网络和终端隔离产品技术规范)

GB/T 45164-2024_Chinese: Classification and designation of defects in investment castings (Chinese: 熔模铸件缺陷分类及命名)

English versions: GB 4404

English versions: GBZ45388

GB/T 19510.207-2023 Chinese PDF (GB/T19510.207-2023) GB/T 45584-2025 GB/T 45345-2025_Chinese: Metallic and otherGB T 19510. 207 2023_Chinese: Controlgear for electric light sources Part 2 7: Particular requirements for electric source for safety services (ESSS) supplied electronic controlgear for emergency lighting (self contained) (Chinese: 2 7ESSS) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19510. 207 2023