| 摘要 |
PROBLEM TO BE SOLVED: To surely equalize heating temperature of a necessary part of the cavity or the whole cavity. SOLUTION: A face heater 4 for heating a cavity 3 is incorporated in cavity components 1 and 2 formed by enclosing the cavity 3 in which a product is molded. The face heater 4 approaches the cavity 3 from a face other than the face of the cavity 3 of the cavity components 1 and 2, and fitted to fitting grooves 12 and 22 dug in along an irregularity of the cavity 3.
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