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SHUNMA 21037 Aircraft Lift Principle Demonstration Teaching Instrument Wing Lift Principle and Gas Convection Experiment ModelDescription:Item Name: Aircraft Lift Principle ModelModel: 21037Weight: 3000gSize: 53.5*18*28.5 cmMaterial: Metal, Environmentally Friendly PlasticUse voltage: The power supp..

SHUNMA 22015 Plastic Open Type Hand-cranked Wave Demonstration Vertical Horizontal Wave Demonstrator Experiment ModelDescription:Item Name: Wave Demonstrator ModelModel: 22015Weight: 2000gSize: 405*305 mmMaterial: PlasticFeaatures:- This instrument can demonstrate the formation and propagation of ve..

Specification: Voltage: 2.5V Base: E10 Miniature Screw Item Package Quantity: 50Features: 1. Mainly used in primary and secondary school electrical experiments. 2. These E10 Miniature Screw Base Light Bulbs have a variety of uses. Compatible with many power tools and use on experiment.  3. This pr..

Specification:Length 250mm Width: 110mm Height: 100mmPower: 130 motorColor: red, yellow, blue Random delivery! Experimental equipment: wheels, switches, wires, DC motors, battery boxes, EPS bodies, diagonal pliers. Switch: A device that turns the power on and off EPS body: the o..