| 摘要 |
An assembly including a pump attachment particularly adapted to form an nonaerosol pump sprayer. The attachment includes a body, a shaft, a piston, an inlet valve and a biasing member. The body defines an elongate chamber having the first end, second end, and an interior wall extending between the first end and second end. The shaft extends through the opening in the first end of the chamber. The piston is reciprocally mounted within the chamber and includes an outer annular surface sized and shaped to form a sealing engagement with the interior wall of the body.
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