PURPOSE: To obtain the subject cord, having two wiry units arranged around a twisted wire group and good in rubber penetration ratio by simultaneously guiding three kinds of twisted wire groups or wiry units in one rotating body through specific passages.

CONSTITUTION: Wiry units are divided into three kinds of a twisted wire group 21 delivered from a cradle 2 through one shaft center of a rotating body 1 to a shaft center on the opposite side while being rotated around the cradle, a wiry unit 20 delivered from the outside of the rotating body through one shaft center of the rotating body 1 to the shaft center on the opposite side while being rotated around the cradle and a wiry unit 19 delivered from the upper part of the cradle directly to the shaft center on the opposite side and guided. Twist is applied to the twisted wire group twice for one rotation of the rotating body without applying any twist or torsion to the other two wiry units themselves. Twist is applied to the other two wiry units of the twisted wire group once for one rotation of the rotating body.