| 摘要 |
PROBLEM TO BE SOLVED: To save labor for setup between processes by welding divided surfaces without clearance even if they are formed in complicated shapes and reducing an installation space for a molding device used. SOLUTION: A trap body 4 is formed in a hollow shape by separately resin-molding two divided bodies comprising a cover body 2 as an upper side divided body having an inlet port 15 for sewage and a gutter body 3 as a lower side divided body so formed that its upper surface is opened so as to match all the peripheral edge of the cover body 2 beforehand, and all the peripheral edge of the cover body 2 is allowed to abut on the opening end of the gutter body 3 and welded with a welding resin along that abutted surface. COPYRIGHT: (C)2006,JPO&NCIPI
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