diy tractor mini petrol pump science project | How is heavy trolley get refueled by petrol pump?

diy tractor mini petrol pump science project | How is heavy trolley get refueled by petrol pump? : • diy tractor mini petro...
The video gives you a great experience about farming tools such as tractors for planting carrot fields, heavy trucks, ships,... For more detailed content, please watch video.
Hope everyone has moments of comfortable relaxation.
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[@diyminihtfarmer]

This is a great science project!