STL-SGM Inline Four-Cylinder Hot Air Stirling Engine External Combustion Engine Power Generator ModelSpecifications: .Material: Material: Quartz + Aluminum Alloy .Heating Tube Inner Diameter: 15.85mm .Piston Stroke: 16mm .Piston Diameter: 16mm .Flywheel Diameter: 50mm .Pulley Diameter: 24.5mm .Motor: 310 DC Motor .Product Weight: 563g .Package Weight: 665g .Product Dimensions: 20 x 14 x 10cm .Package Dimensions: 25 x 20 x 15cm .Packing: Box .Ages: 16+Package Including.Stirling Engine *1.Alcohol Lamps *2.Accessory Set *1
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