Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 7029-1989
Scope
This standard applies to the shape and dimensions of the tow bar collar used to connect a full trailer, a tractor towing a full trailer, and a fully coupled vehicle with a total vehicle weight exceeding 34.3 Kn {3500 kgf} (including a semi-trailer with a balanced full trailer) And the range of movement between the tow hook and the tow bar ring. Note: The units and numbers within {} in this standard are in the customary unit system and are recorded for reference.
CNS 7029-1989 history
1989CNS 7029-1989 Shape, Dimensions and Travel Angles of Drawbar Eyes for Full Trailers