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Hey everyone, I’ve noticed that a lot of bulldozers come equipped with rippers on the back, but I’m curious of what’s the main purpose of a ripper, and when is it actually needed? Are they mostly for breaking up hard ground, or do they have other uses in construction, mining, or land clearing...

Hey everyone, I’ve been wondering, what materials are commonly used to manufacture dump trucks? I know the bed and frame need to be tough, but are there differences in materials depending on the type of truck or what it's hauling? For example, do some use aluminum instead of steel for weight...