18 Grade Methanol Engine Brass Flywheel Straight Exhaust Pipe Engine with Voltage Display Switch Price_$100-$200 the structure design is stable

the structure design is stable

The product is safe and environmental

Physical/mechanical learning

drift and many other tricks

you can observe the Stirling engine operation process

18 Grade Methanol Engine Brass Flywheel Straight Exhaust Pipe Engine with Voltage Display Switch Price_$100-$200 the structure design is stable18 Grade Methanol Engine Brass Flywheel Straight Exhaust Pipe Engine with Voltage Display Switch Features: . It adopts copper flywheel, direct exhaust pipe, and voltage display switch. The whole machine is exquisitely crafted. The details of each component are in place and fixed on the bottom box for easy display. . Product Size: 11x6. 5x12. 5cm (length does not include the protruding part of the flywheel 1. 5cm) . How to Use: This product has been