| 摘要 |
In a process for manufacturing an inflatable article, box-like upper and lower mattress bodies of similar dimensions are superimposed upon each other. The upper mattress body includes first upper and lower sheets, and a first interconnecting strip interconnecting peripheral areas of the first upper and lower sheets. The lower mattress body includes second upper and lower sheets, and a second interconnecting strip interconnecting peripheral areas of the second upper and lower sheets. Junctures of the first lower sheet and the second upper sheet are united by heat-sealing so as to form a surrounding clearance between the junctures and peripheries of the sheets for retaining a bedcover.
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