| 摘要 |
A plastic unit to be assembled by welding includes first and second members, and an interconnecting member for interconnecting the first and second members. The first member extends in an axial direction. The second member caps the first member, and is in contact with the first member at a first junction extending in the axial direction and terminating at opposite first and second ends, a second junction adjacent to the first end and extending in an inward direction, and a third junction adjacent to the first end and extending in an inward direction. The interconnecting member includes first, second and third interconnecting portions disposed at the first, second and third junctions, respectively. |
