| 摘要 |
PROBLEM TO BE SOLVED: To melt and reduce the volume of waste plastics and the like, produced in a home, small factory and the like, by a device, compact in its size as far as possible. SOLUTION: A fireproof oven 1 is heated by a heating microwave energy source (microwave oscillator 3) to melt and reduce the volume of waste plastics, such as polystyrene foam, pet bottles and the like.
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