ISO 6489-3-2021 农业车辆--牵引车和被牵引车之间的机械连接--第3部分:拖拉机牵引杆 Agricultural vehicles — Mechanical connections between towed and towing vehicles — Part 3: Tractor drawbar

This document specifies the dimensional requirements and location for category 0, 1, 2, 3, 4 and 5 drawbars mounted on the rear of agricultural tractors. rd edition 2021-02 Agricultural vehicles — Mechanical connections between towed and towing vehicles — Part 3: Tractor drawbar Véhicules agricoles — Liaisons mécaniques entre véhicules remorqueurs et véhicules remorqués — Partie 3: Barre d'attelage du tracteur Reference number ISO 6489-3:2021(E) ？ ISO 2021 ISO 6489-3:2021(E) COPYRIGHT PROTECTED DOCUMENT ？ ISO 标准截图