| 摘要 |
<p>A base for a plastic container including an outer support portion; a structured formation ring including a plurality of sequential formations; an inner inversion portion disposed radially inwardly of the structured formation ring; and a central portion. In an embodiment, the sequential formations are disposed in a substantially ring-like configuration and at least the inner inversion portion is configured to flex in response to internal vacuum forces associated with said container.</p> |
