| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gasket usable for various pressure withstanding flanges and formed to easily adjust the gasket center to the center of piping. SOLUTION: A plurality of tongue piece parts 2 are extended from the outer peripheral edge of an annular part 1 of circular shape, and a plurality of bolt holes 3 are formed in each tongue piece part 2, with different radii from the center of the circle.</p> |
