Commercial road vehicles - Mechanical connections between towing vehicles, Part 3: 40 mm pin-type couplings and drawbar eyes (ISO 8755:2001, MOD)
商用道路车辆.牵引车之间的机械连接.第3部分:40mm销式联轴器和挂钩孔
Adopts ISO 8755:2001 which specifies characteristics of 40 mm drawbar eyes, necessary for the changeability of coupling components on trailers and permitting interchangeability between towing vehicles and trailers equipped with these components.