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BLOW-MOLDED UNITARY STRUCTURE WITH ENHANCED STRENGTH
BLOW-MOLDED UNITARY STRUCTURE WITH ENHANCED STRENGTH
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机译:具有增强强度的吹塑酉结构
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摘要
A blow-molded unitary structure includes a panel having first and second panel walls and a generally hollow interior between the first and second panel walls. The structure also includes one or more different types of strengthening elements monolithically formed with the panel and across a substantial portion of the panel to enhance the strength of the structure. A strengthening element can be a depression recessing from the second panel wall toward an interior of the panel, a protrusion protruding from the second panel wall toward an exterior of the panel, a rib protruding outwardly toward the exterior of the panel and a trench formed by side walls of adjacent protrusions.
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