| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide piping material and its coating bodies capable of simplifying coating work without damaging bendable properties and flexibility. <P>SOLUTION: A soundproof pipe 10 comprises a freely flexible body pipe 11, a first coating body 21 provided on a surface of the body pipe 11, and a second coating body 31 provided on a surface of the first coating body 21. The first coating body 21 and the second coating body 31 are respectively formed by rolling first sheet material 22 and second sheet material 32 and joining the side edge parts of each material together. The first sheet material 22 and the second sheet material 32 are respectively provided with a first separation part 23 and a second separation part 33 for keeping the bendable properties of the body pipe 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
