Hydraulic Excavator DIY Student Technology Small Production Science and Education Toy Model Science Experiment Toy

Product Name :Hydraulic ExcavatorPreparation tools: no need to bring your own toolsAge-appropriate stage: greater than 8 years oldPower demand: manual operationProduct use: Exercise the child's manual brain, understand the mechanical structure, learn the hydraulic transmissionPrinciple: Hydraulic transmission is a transmission method that uses pressurized liquid in a closed system to transmit motion and power. It first converts mechanical energy into pressure energy of the liquid, and thenThe energy of the water passing through the piston and the pressure of the water can be converted into mechanical energy by the pressure energy of the liquid between the subtotals??colour:Wood colorMaterial:woodsize:50*12*30cm??Package Contents:1* Hydraulic excavatorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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