所述的伸缩杆的外端固定连接有牵杆，在该牵杆的端部连接有保险牵引钩。
One end of the draw rod fixedly connected with the outer end of the telescopic rod is connected with a safety draw hook.
本实用新型涉及一种重型汽车牵引装置，特别涉及一种重型汽车加强型牵引钩装置。
The utility model relates to a towing device of heavy vehicle, in particular to a reinforced towing hook device of heavy vehicle. The device is composed of a towing hook and a locking ring.
本实用新型涉及一种重型汽车牵引装置，特别涉及一种重型汽车加强型牵引钩装置。
The utility model relates to a towing device of heavy vehicle, in particular to a reinforced towing hook device of heavy vehicle. The device is composed of a towing hook and a locking ring.
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