US $10.71Original Price : US $16.73 (36%)
Limited Offer Hydraulic excavator DIY student technology small production science and education toy model science with FREE Worldwide Shipping!
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Product description
[32968247515]RM1727882525408497
Product Name :Hydraulic ExcavatorProduct material: environmentally friendly wood boardProduct size: 50*12*30cmPreparation tools: no need to bring your own toolsAge-appropriate stage: greater than 8 years oldPower demand: manual operationProduct color: wood color (picture real shot)Product 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 subtotalsPacking method: No Original Box
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