the main portion and the connecting portion thereof; a fourth wiring that extends as a narrow plate having two main faces and having a predetermined plate width, and provided with a main portion, at least one connecting portion and an elbow portion defined as a portion between the main portion and the connecting portion thereof, the connecting portion of the first wiring and the connecting portion of the fourth wiring being in contact with each other through a predetermined area; a fifth wiring that extends as a narrow plate having two main faces and having a predetermined width, and provided with a main portion, at least one connecting portion and an elbow portion defined as a portion between the main portion and the connecting portion thereof, the connectingportion of the second wiring and the connecting portion of the fifth wiring being in contact with each other through a predetermined area; and a sixth wiring that extends as a narrow plate having two main faces and having a predetermined width, and provided with a main portion, at least one connecting portion and an elbow portion defined as a portion between the main portion and the connecting portion thereof, the connecting portion of the third wiring and the connecting portion of the sixth wiring being in contact with each other through a predetermined area. Between any one of the first wiring to the sixth wiring and one of the other wirings, a specific distance defined as a distance between gravity centers in sections of two corresponding wirings