GB/T 20183.1-2024 Chinese PDF (GB/T20183.1-2024) GB/T 45505.4-2025 GB/T 45147-2024_Chinese: Road vehicles -

GB/T 45147-2024_Chinese: Road vehicles - Test of vehicle air braking systems with a permissible mass of over 3

GB/T 22451-2024_Chinese: Common requirements of electromagnetic compatibility for radio communication equipment (Chinese: 无线通信设备电磁兼容性通用要求)

English versions: GB/T 19710

GB/T 22321

1-2023_Chinese: Agricultural irrigation equipment - Sprinklers - Part 1: Definition of terms and classification (Chinese: 农业灌溉设备 喷头 第1部分：术语和分类)

GB/T 20183.1-2024 Chinese PDF (GB/T20183.1-2024) GB/T 45505.4-2025 GB/T 45147-2024_Chinese: Road vehicles -GB T 20183. 1 2024_Chinese: Equipment for crop protection Spraying equipment Part 1: Test methods for sprayer nozzles (Chinese: 1) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20183. 1 2024