| 摘要 |
PROBLEM TO BE SOLVED: To prevent a crack from breaking a platelike heat insulator to improve heat insulation and durability. SOLUTION: A vertical thermal treatment equipment 1, in which a heater 10 having a cylindrical heat insulator 11 is placed around an upright treatment container 2 for storing a plurality of bodies w to be treated and a platelike heat insulator 13 is placed on the barrel heat insulator 11 of the heater 10, comprises a plurality of cores 21 embedded into the platelike heat insulator 13.
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