| 摘要 |
An improved spruing assembly utilized in the investment process in the making of investment mold castings. The spruing assembly comprising a base unit engaged to a casting ring to define a receptacle for receiving investment material, and a sprue holding member connecting to the base unit within said receptacle and supporting thereon one or more sprues for holding a wax structure formed in a pattern to be cast. The sprue having a first end connecting to the wax structure and a curved adapter disposed at the second end for quick locking onto the sprue holding member.
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