A cable harness arrangement, especially for connection of the individual components of a motor vehicle, is provided which includes a flexible printed circuit board having at least one flat printed circuit and at least one non-flat conductor. A control section causes a cut-forming machine installed at a cut-forming location to form a cut in a resin layer of a disk-shaped substrate, then causes an indexing mechanism to rotate a transfer stage to thereby transfer the disk-shaped substrate formed with the cut to a central hole-forming location, and then causes a punching machine to punch a central hole. The body portion may define a periphery of the golf club head. The substrate having the quantum dot layer with a hole-transporting surfactant is immersed in the replacement solution for a predetermined time, and part of the hole-transporting surfactant is replaced with the electron-transporting surfactant to form a quantum dot layer having one or more layer. In another embodiment, the portion of the optical fiber may be positioned directly along the arcuate exterior surface of the body.