GB/T 45646-2025 Chinese PDF (GB /T45646-2025) GB 5009.307-2025 1-2025_Chinese: Technical specification of energy

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 45650-2025_Chinese: Air source heat pump packages with carbon dioxide as refrigerants (Chinese: 二氧化碳空气源热泵机组)

GB 16809-2024_Chinese: Fire resistant windows (Chinese: 防火窗)

English versions: GB/T 16981-2025

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 45646-2025 Chinese PDF (GB /T45646-2025) GB 5009.307-2025 1-2025_Chinese: Technical specification of energyGB 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