The application of the release agent to the finishing mold by the manual labor of the worker is unnecessary, and the burden on the worker according to the release agent application work can be reduced, and the safety of the worker in the release agent application can be further improved. By making the stop time of glass bottle molding short, it is possible to reduce variations in the coating position of the mold release agent and the amount of coating, etc. in finish molding, and to provide a configuration suitable for coating the mold release agent to the finish mold. Contributes to the stabilization of its quality. The release agent coating device 40 is a part of the finishing mold forming surface 31f formed in the finishing mold 31 and the bottom mold forming surface 32f formed in the bottom mold 32 disposed under the finishing mold 31. It is configured to apply a release agent to at least one of the front surfaces.
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