DIN V 74052-10-1989 牵引车和拖车之间的机械连接件.第10部分:50 mm 自动螺栓联轴器与中心轴挂车使用的附加规范
Mechanical connections between towing vehicles and trailers; automatic bolt coupling 50; additional specifications for the use with centre axle trailers
This preliminary standard contains specifications in addition to those given in DIN 74052 part 1. These additional specifications refer to the use with center axle trailers.
