GB/T 20790-2024 Chinese PDF (GB/T20790-2024) GB 43630-2023 GB/T 19794-2023_Chinese: Agricultural irrigation equipment

GB/T 19794-2023_Chinese: Agricultural irrigation equipment - Volumetric valves - General requirements and test methods (Chinese: 农业灌溉设备 定量阀 技术要求和试验方法)

GB/T 12008

GB/T 30544

English versions: GB/T 17382-2023

GB/T 45583-2025_Chinese: Determination of common insecticide residue in cotton fiber - High performance liquid chromatography-mass spectrometry method (Chinese: 棉纤维常用杀虫剂农药残留的测定 高效液相色谱-串联质谱法)

GB/T 20790-2024 Chinese PDF (GB/T20790-2024) GB 43630-2023 GB/T 19794-2023_Chinese: Agricultural irrigation equipmentGB T 20790 2024_Chinese: Head feed combine harvester Technical requirements (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 20790 2024