Medium testing fixtutre for PDP-plate

一种柔性软管，通过与管壁(6)的螺旋槽(10)的槽底部相对向的带板部(21)、和从沿该带板部(21)的长方向的两端立起的一对侧板部(22)、(22)而形成大致为凹形的截面。通过将该增强芯材(20)的侧板部(22)、(22)的前端部分粘接或熔接在所述螺旋槽(10)内，而减小增强芯材(20)的粘接或熔接面积，并使增强芯材(20)容易从管壁(6)剥下。这种在管壁的内周侧的螺旋槽内封入导体、将增强芯材粘接或熔接在螺旋槽内的柔性软管，可充分减轻增强芯材的剥除力，能够简单地取出导体。 PURPOSE: To easily take out a conductor by sufficiently reducing the peeling force of a reinforcing core material in a flexible hose formed by adhering or fusing the reinforcing core material for adhesion to a spiral groove so that the conductor is closed in the spiral groove on the inner peripheral side of a tube wall. CONSTITUTION: The reinforcing core material 20 is formed to have a nearly recessed shape cross section by a strip part 21 facing the bottom part of the spiral groove 10 of the tube wall 6 and a pair of side plate parts 22 and 22 standing from both ends along the longitudinal direction of the strip part 21. Tip parts of the side plate parts 22 and 22 of the reinforcing core material 20 are adhered or fused for adhesion to the spiral groove 10 to reduce the adhesion area or fusing area of the reinforcing core material 20 so that the reinforcing core material 20 can be easily peeled from the tube wall 6.