| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a shower hose superior in durability, capable of restraining generation of an unpleasant sound, and superior in easiness-to-use. <P>SOLUTION: A polyethylene tube is inserted into a flexible tube 21. When heating and pressurizing the tube by putting steam in the tube, the polyethylene tube expands, and thereby, the polyethylene tube is brought into close contact with an inner peripheral surface 41 of the flexible tube 21, and a resin coating 25 can be formed. The resin coating 25 is formed so as not to largely project in a spiral groove 39 of the inner peripheral surface of the flexible tube 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
