| 摘要 |
The invention contemplates a particular construction of a tubular plastic neck fitting and cooperating metal container part whereby a child-resistant safety closure feature can be directly applied for controlled selective access to the contents to the container. The safety closure requires a certain resistance to applied rotational torque about the neck axis, and locking formations are provided in the metal-to-plastic interfit such that the required torque resistance is achieved. The construction is also such that the torque resistance is achieved regardless of the angular orientation of the parts upon axial assembly thereof.
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