Mini Hot Air Stirling Engine Model Miniature Steam Gas Engine External Combustion Engine Aerodynamics are rich in knowledge of physics, single cylinder combustion engine. Engine principle is intuitive, educational toys, teaching experimental equipment can effectively cultivate children's interest in learning can also be used for classroom teaching, more intuitive and easy to understand. Specifications Material:metal,glass Color:gold Size:165x87x95mm Package include 1 x Stirling Engine 1 x Alcohol Burner 2 x SpareHeating Tube
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