M2C Mini Steam Boiler with Twin Cylinder Marine Steam Engine Stirling Engine Model Type_2 Cylinder Stirling flywheel by hand until the

flywheel by hand until the flywheel can automatically rotate

The stirling engine can't run freely then

B: the top end of the rotary shaft part can not be forced into sharp collision

The design is novel and the shape is unique

M2C Mini Steam Boiler with Twin Cylinder Marine Steam Engine Stirling Engine Model Type_2 Cylinder Stirling flywheel by hand until theM2C Mini Steam Boiler with Twin Cylinder Marine Steam Engine Stirling Engine Model Features: . Beautiful Appearance: small and novel in shape, can be placed in the palm of your hand like a treasure . Exquisite mini, let a person fondle admiringly. Is an excellent craft . High Quality: the product is made of all copper, finely made, bright surface, glittering . Boiler: The boiler can hold 90 ml of water and the working time is about 20 minutes. It is