| 摘要 |
PURPOSE: A prefabricated cavity mold, which reduces processing costs and manufacturing costs of cavity mold, is provided to precisely form long molded products by applying a plurality of sidewalls and bottom walls with easily assemblable structured. CONSTITUTION: A prefabricated cavity mold comprises sidewalls(31,32,33,34) and bottom walls(35). The side edges, adjacent a sidewall, are inserted in one another. The bottom end of the sidewalls is inserted in the edge of the bottom wall. The sidewall and bottom walls are combined with a fastener(71).
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