| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily prevent gas leakage, and stop the gas leakage, for the occurrence of the gas leakage when rust is generated in a metallic pipe as moisture intrudes from a clearance between a covering part of a steel pipe and the metallic pipe in a screw part. <P>SOLUTION: The covering part is formed by applying a photo-curing resin composition 6 to an outside part of at least a threadedly engaging place of a screw joint part arranged in a gas pipe, and a protection layer of the screw joint part is formed by curing and reacting the photo-curing resin composition 6 by irradiating the light to the covering part. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
