| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide manufacturing method for multi-piece solid golf ball that can conduct mass production of multilayer cores with more than two layers without using a large scale apparatus. SOLUTION: This is a manufacturing method for multi-piece solid golf ball consisting of a core 4 comprising more than two layers and a cover 3 formed on the core, and it constitutes, when the (N+1)th layer of the core in a hemispherical shell is applied on the N-th layer in the process of making the core, the (N+1)th layer with composition containing a magnetic material to magnetically fix to a metallic press mold.</p> |
