Twin Sheet Thermoforming According to Wickipedia the Online Encyclopedia
Twin-sheet thermoforming is a process of vacuum or pressure forming two sheets of plastic essentially simultaneously, with a separate mold on the top and bottom platens. Once the plastic has been molded, it remains in the molds, and while still at its forming temperature the two molds are brought together under high pressures, and the two sheets are welded wherever the molds dictate a weld ... Click to Read The Rest on Wickipedia the online encyclopedia

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