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Size #3 Thick Sprue Former - 1 7/8" Placed in the center hole of the unvulcanized rubber or silicone prior to vulcanization to form and retain center sprue during the vulcanizing process.
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A large, 1-7/8" thick sprue former (Size 3) for heavy-duty centrifugal molds. It creates a robust entry point for molten metal, ideal for large figurines and industrial parts.
- Model: #3
- Dimensions/Thickness: 1-7/8"
- Country of Origin: United States
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