Hitachi Construction Machinery

Global

Environmental Protection Classroom Winning Drawings

11
Eco‒activities carried out by all

12
Ecology and pollution

13
Contrasting environments

14
Separating garbage to preserve the environment

15
The “Black Cycle”

16
Let’s protect the planet!

17
Beautiful Earth

18
What should we do to protect the environment?

19
Small eco‒log house in the woods

20
Let’s keep Mother Earth clean

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