GB/T 43400-2023道路车辆3.5t以下挂车钢制牵引杆机械强度计算国家标准
英文:Road vehicles—Trailers up to 3.5 t—Calculation of the mechanical strength of steel drawbars GB/T 43400-2023介绍: 国家标准《道...
英文:Road vehicles—Trailers up to 3.5 t—Calculation of the mechanical strength of steel drawbars GB/T 43400-2023介绍: 国家标准《道...