Process of manufacture and the Lear seat back panel of Lear seat back panel for cars

摘要

The present invention is characterized in that a coupling vane having a cross section in the shape of a 'C' is formed at four corners of a panel plate to increase the rigidity thereof, and the upper part of the panel plate is depressed And the inner surface of the receiving groove is pierced to reduce the weight, and the coupling protrusion formed by pressing the upper portion of the burring hole is low in cost and durable And a fastening plate for fastening the short plate is formed by pressing the upper part of the fastening protrusion after the short plate made of a strong and lightweight single-ply material is coupled.;