| 摘要 |
<p>One aspect provides a vent pipe section that comprises a body member having first and second ends and a central axis along a length thereof, a latch receiving member protruding from a side surface of and coupled to the body member and located adjacent one of the first or second ends, a movable latch attached to the body member and located adjacent an end opposite to that of the latch receiving member and configured to cooperatively engage the latch receiving member and exert a locking force along the central axis of the body member. This embodiment further includes a stop located on an outer surface of the body member adjacent the second end. A method of manufacture is also provided.</p> |
