BALL-CLAMPING COUPLER FOR REAR TRAILER HITCHThe present invention relates to the technical field of ball-clamping connection of rear trailer hitch, and in particular, to a ball-clamping coupler for a rear trailer hitch, in which the housing is …DRIVE·Apr 29·2 min readFollowB60D1/06WODE GLOBAL QINGDAO OUTDOOR CO LTD [CN]