$ 4
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Description
These rubber sprue bases are designed for tree spruing with multiple pieces on each tree. Used for solid and perforated flasks. Made of natural rubber. PRODUCT SPECIFICATIONS .- Material: Natural Rubber .- Cylinders Diameter: 3” .- Hole Dia. 5/16” . - The round bottom Holds: 5/16 (8 mm) sprue. - Used for jewelry making, casting, investing, mold making, silicone or rubber molds and more Material: Natural Rubbe Cylinders Diameter: 3” Hole Dia. 5/16” The round bottom Holds: 5/16 (8 mm) sprue Used for jewelry making, casting, investing, mold making, silicone or rubber molds and more
