| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water supply pipe for non-open cut method, having an outer peripheral surface to be hardly damaged. <P>SOLUTION: This water supply pipe 10 is composed of: a pipe main body 11 composed of polyethylene; and a sheath 12 composed of polyethylene and covering an outer peripheral surface 11a of the pipe main body 11. The sheath 12 has blue color to be different from black color of the outer peripheral surface of the pipe main body 11. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
