| 摘要 |
The container comprises a bottom, a casing and a shoulder. It is in one piece of aluminium alloy which is shaped without swarf removal.The shoulder is at between 80-120 deg to the casing. One or more openings are provided, and stacking can be via a ring distorted inwards or outwards to accommodate another container. Three or more bosses or flanges can be provided for stacking, being glued, welded or crimped into place.
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