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Twin-sheet forming is accomplished by simultaneously forming two separate
sheets in their respective separate molds to create hollow and double-walled parts
comparable to roto-molded parts but with much more detail and better cosmetics.
A vacuum fixture is required when a part must be CNC trimmed. Vacuum fixtures
are constructed by taking a reverse impression of the part and mounting this impression
into a vacuum box. The trim fixture then holds, under vacuum pressure, each part being
CNC trimmed to ensure consistent results.
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