GB/T 19510.212-2023 Chinese PDF (GB/T19510.212-2023) GB/T 44966-2024 English versions: GB/T 45109

English versions: GB/T 45109

English versions: GB/T 45455-2025

1-2024_Chinese: Water chilling(heat pump) packages using the vapor compression cycle - Part 1: Water chilling(heat pump) packages for industrial and commercial and similar applications (Chinese: 蒸气压缩循环冷水（热泵）机组 第1部分：工业或商业用及类似用途的冷水（热泵）机组)

GB 17918-2025_Chinese: Safety specification for dust explosion protection in bulk grain loading and unloading system in port (Chinese: 港口散粮装卸系统粉尘防爆安全规范)

GB/T 19055-2024_Chinese: Reliability test methods for motor vehicle engines (Chinese: 汽车发动机可靠性试验方法)

GB/T 19510.212-2023 Chinese PDF (GB/T19510.212-2023) GB/T 44966-2024 English versions: GB/T 45109GB T 19510. 212 2023_Chinese: Controlgear for electric light sources Part 2 12: Particular requirements for d. c. or a. c. supplied electronic ballasts for discharge lamps(excluding fluorescent lamps) (Chinese: 2 12) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 19510. 212 2023