GB/T 25444.6-2023 Chinese PDF (GB/T25444.6-2023) GB/T 42222-2022 GB/T 45321-2025_Chinese: Measuring method for

GB/T 45321-2025_Chinese: Measuring method for electric and photometric parameters of filament light sources for power-driven vehicles (Chinese: 机动车用灯丝光源光电参数测量方法)

GB/T 45108-2024_Chinese: Recycling materials for platinum group metals (Chinese: 再生铂族金属原料)

GB 26920-2024_Chinese: Minimum allowable values of energy efficiency and energy efficiency grades for commercial refrigerating appliances (Chinese: 商用制冷器具能效限定值及能效等级)

English versions: GB/T 4437

GB/T 25444.6-2023 Chinese PDF (GB/T25444.6-2023) GB/T 42222-2022 GB/T 45321-2025_Chinese: Measuring method forGB T 25444. 6 2023_Chinese: Mobile and fixed offshore units Electrical installations Part 6: Installation (Chinese: 6) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 25444. 6 2023