| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manhole cover and an anticorrosion film formation method, which can maintain a greater anticorrosive performance compared with a normal coated manhole for a long period. <P>SOLUTION: An anticorrosion film 4 composed of a quasi-alloy coating 2 as a primer and a thermoplastic saturated polyester resin coating 3 is formed on the surface of a cover body 1. <P>COPYRIGHT: (C)2013,JPO&INPIT |
