GB/T 45646-2025 Chinese PDF (GB /T45646-2025) GB 5009.307-2025 classification and model compilation method

classification and model compilation method for complete sets of equipment for fiber carbonization production (Chinese: 纤维碳化生产成套装备的术语、分类及型号编制方法)

GB/T 31968-2025_Chinese: Rare earth composite yttrium zirconium oxide ceramic powder (Chinese: 稀土复合钇锆陶瓷粉)

GB/T 45487-2025_Chinese: Ships and marine technology - Marine environment protection - Specification for collecting data on ship's fuel oil consumption (Chinese: 船舶与海上技术 海上环境保护 船舶燃油消耗数据收集规范)

1-2025_Chinese: Technical specification of energy absorption device for high voltage direct current(HVDC) power transmission - Part 1: DC controllable and self-recovery energy absorption device (Chinese: 高压直流输电用消能装置技术规范 第1部分：直流可控自恢复消能装置)

GB/T 45646-2025 Chinese PDF (GB /T45646-2025) GB 5009.307-2025 classification and model compilation methodGB T 45646 2025_Chinese: Greenhouse gases The quantification method and requirement for carbon footprint of products Internal combustion engines (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 45646 2025