| 摘要 |
A flange is provided to form a main body with an insertion hole and a coupling hole by extrusion molding without any additional machining, thereby reducing a manufacturing time thereof. A flange includes a main body(110) formed with an insertion hole(111), and a cylindrical connector(120) having an insertion part(126) to be inserted into the insertion hole of the main body. The connector has a coupling hole(112) for inserting a hose connection pipe(130) at an end of the insertion part, a stepped through-hole(121) with an inner diameter smaller than that of the coupling hole at a side of the coupling hole, and a holding part(123) formed outside for preventing abnormal insertion of the insertion part.
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