To the two side portions flange of Reinforced garment reinforcement is attached to the bottom surface of the loop filler is attached to the bead portion to form the bead in a circular shape to prevent protruding to the outside to improve the productivity of products and improve the product quality, Reinforced relates to the treatment for the car loop gangseongbo steel.; Designed present having the above object is according to the loop Reinforced garment 20 is attached to the lower end of the loop (10) that forms a ceiling portion of the car, the plunger is formed at both sides of the loop Reinforced garment 20 (21 ) to be the basic features on the technical configuration of the filler composed of (30 by forming a bead portion 22 of circular shape) is to prevent the flowing out to the outside.
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