... air brake,connecting mode,towbar Size of connector to tractorHitchpinhole size,diameter 30Height of ... coupling face,≤450Reference picturesInspection standardWhole trailer packageappearance,packaging film coveredwhole trailer logo,scutcheonattached accessory,not ... no welding,painting defectappearance,packaging film coveringwhole trailer logo,scutcheonattached accessory,not haveattached documents, ...