GB/T 18802.331-2024 Chinese PDF (GB/T18802.331-2024) GB/T 29479.1-2025 4-2023_Chinese: Agricultural irrigation equipment -

4-2023_Chinese: Agricultural irrigation equipment - Filters for micro irrigation - Part 4: Granulated media filters (Chinese: 农业灌溉设备 微灌用过滤器 第4部分：颗粒介质过滤器)

30-2023_Chinese: Electromagnetic compatibility - Testing and measurement techniques - Part 30: Power quality measurement methods (Chinese: 电磁兼容 试验和测量技术 第30部分：电能质量测量方法)

English versions: GB 2099

GB/T 16439-2024_Chinese: General specification for AC servo system (Chinese: 交流伺服系统通用技术规范)

English versions: GB/T 20130-2025

GB/T 18802.331-2024 Chinese PDF (GB/T18802.331-2024) GB/T 29479.1-2025 4-2023_Chinese: Agricultural irrigation equipment -GB T 18802. 331 2024_Chinese: Components for low voltage surge protection Part 331: Performance requirements and test methods for metal oxide varistors (MOV) (Chinese: 331MOV) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 18802. 331 2024