Hot Air Stirling Engine Model Generator Motor Educational Steam Power Toy The bottom plate of the

The bottom plate of the trolley is made of pure metal and is firm and firm

The combination of texture and beauty

71 inches Package Contents

and the dry air expands to generate power

Hot Air Stirling Engine Model Generator Motor Educational Steam Power Toy The bottom plate of theMetal Bootable Steam Engine Model Retro Stirling Engine Model with Heating Boiler Alcohol Burner Features: . 100% brand new and high quality . Except the base is made of wood, the whole product is made of all metal material, polished and polished, perfect for high end texture, and it is a beautiful art. . The product can be used without receiving excessive debugging. . The key parts are commonly used brass + fine coating materials, which are not worn