Stirling Engine Kit V-shape Four-cylinder Vacuum Suction v4 Engine Model Toy Price_$50-$100 The bottom plate and connecting

The bottom plate and connecting rod are made of 304 stainless steel

making it safe and environmentally friendly

friction force can be very big

This is an engine work in good condition for many years without lubrication

Stirling Engine Kit V-shape Four-cylinder Vacuum Suction v4 Engine Model Toy Price_$50-$100 The bottom plate and connectingV shape Four cylinder Vacuum Suction Engine Model Toy for Developing Intelligence Features: . 100% brand new with high quality . The V shaped four cylinder is domineering and looks beautiful . Selected quality materials, made of pure metal, high end atmosphere . The overall polishing is meticulous, the color is bright, it is not easy to rust and fade, and has a high end texture, achieving a dual combination of texture and beauty . The alcohol lamp has