This standard specifies the strength requirements and test methods for the mechanical connection device between the tractor and the trailer (hereinafter referred to as the mechanical connection device). This standard applies to mechanical connection devices that comply with the provisions of GB4781.
GB/T 15087-1994 history
2009GB/T 15087-2009 Road vehicles.Drawbar couplings and eyes for hinged drawbars.Strength tests
1994GB/T 15087-1994 Motor vehicles-Drawbar couplings and eyes for hinged drawbars-Strength test