1. Crank and Rocker Mechanism
2. Double-rocker Mechanism
3. Generator
4. Meshing Belt Driving Mechanism
5. Music Robot
6. Oscillating and Reciprocating Mechanism
7. Slider-crank Mechanism
8. Ultrasonic Guitar
9. Ultrasonic Radar
Package size: 49.5*38.5*22.5 cm
GW: 5.5kgs
Material: Metal
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