| 摘要 |
A cylindrical gasket is provided with a reinforcing material (70), a heat-resistant material (71), and air holes that are distributed throughout the reinforcing material (70) and the heat-resistant material (71). The reinforcing material (70) and the heat-resistant material (71) are intertwined with one another to form a structurally integrated member, and with respect to the entire volume of the cylindrical gasket, the reinforcing member (70) accounts for 32 to 60% of the volume, the heat-resistant material (71) accounts for 5 to 58% of the volume, and the air holes 10 to 35% of the volume. |
