| 摘要 |
PROBLEM TO BE SOLVED: To enable to recognize accurately with naked eyes, indexes for indicating to which of two or more metal rings arranged in parallel to an axis direction so that the connection sections may become a 3rd pole.a 4th pole.an n-th pole, connecting sections arranged in alignment in a circumferential direction are connected, even if a coaxial multi-polar plug assembled by insertion-molding is a pin plug having a very small diameter. SOLUTION: In the coaxial multi-polar plug which is assembled and molded by insertion-molding with a resin after setting each part in a mold by combining the parts in a temporarily closed condition with a pole keeping component 5 which is inserted in a back end side of the center pin 1, a mold body z which consists of the resin material of different colors from the color of the resin material molded to the pole keeping component 5 is arranged in a circumference of the back end section 5a of the pole keeping component 5 in which connecting sections 30a.40a... of each connecting terminal piece 30.40... are exposed to the perimeter side and aligned in parallel in the circumferential direction.
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