| 摘要 |
In a first station, a first part is set to a work at a predetermined position thereof, and the work is then conveyed to a second station by a first jig truck, and the first jig truck which has finished such a conveyance, is then returned back to the first station from the second station. In the second station, the first part is spot-welded to the work, and the work thus spot-welded is conveyed to a third station by a second jig truck. In the third station, a second part is set to a predetermined position of the work with which the first part has been assembled, and the work is then conveyed to a fourth station by the second jig truck. In the fourth station, the second part is spot-welded to the work, and the second jig truck which has conveyed the work to the fourth station, is returned back to the second station from the fourth station through the third station.
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