The excavator was manual, and it has been invented for more than 130 years since this year. During the period, it has experienced a fully automatic hydraulic system from steam-driven bucket rotary excavator to electric drive and internal combustion engine driven rotary excavator. The gradual development process of the excavator. This excavator uses three buttons to control the expansion and height of the excavator through the simulated hydraulic system. This excavator can understand the mystery through its own hands-on assembly. Note that this is a DIY assembly model for popular science learning. The structure is simple, please keep it safe. Designed with new syringes (without needles) and wood materials. Base plate length: 22 cm Floor width: 14 cm Overall height: 28 cm Power source: manual
Product weight: 0.1000 kg Product size: 28.00 x 22.00 x 14.00 cm / 11.02 x 8.66 x 5.51 inches Package weight: 0.3270 kg Package size: 25.00 x 15.00 x 8.00 cm / 9.84 x 5.91 x 3.15 inches
Package Contents: 1 x Model Toy
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