Low Temperature Difference Stirling Engine Heat Engine with Plastic Wheel Desk Steam Engine Mechanical Education STEM Toy Model Run Off Boiling Water Gift

Original price was: $29.69.Current price is: $18.89.

690 in stock

Low Temperature Difference Stirling Engine Heat Engine with Plastic Wheel Desk Steam Engine Mechanical Education STEM Toy Model Run Off Boiling Water Gift

Original price was: $29.69.Current price is: $18.89.

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