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The Importance of EPS Pre Expanders in Lost Foam Casting Processes

The Importance of EPS Pre Expanders in Lost Foam Casting Processe...

Dec. 11, 2025

An EPS pre expander machine expands raw polystyrene beads into lightweight, low-density foam beads suitable for molding. This expansion process uses steam to activate a blowing agent, significantly increasing the volume of the beads. T...

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