Low Temperature Stirling Engine Model Physics Experiment Model

Model materials: Stainless steel, ABS, graphite, sponge, aluminum alloy
Specification and size: 90mm(diameter)*100mm(height)
Flywheel diameter: 78mm
Flywheel material: ABS injection molding (not metal. Please be cautious when purchasing if you are interested)
Packaging size: 90mm* 90mm* 110mm
Model weight: 158g
Specifications:
Material: Metal
High-concerned chemical: None
Model Number: CZ1730
Brand Name: Oyimrhjdg
Origin: Mainland China
Subject: PHYSICS