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The hardest tree in the world
The hardest tree in the world is the iron birch tree, this tree is harder than steel, bullets hit in the iron birch wood, like hitting on a thick steel plate, not moving. -
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The world's top ten hardy tree species
In the low-temperature environment, the growth of green plants has been more hindered, which will affect the construction of certain greenery in the city, so do you know what are the most cold-tolerant trees?
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