Construction, concrete processing:
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Vise make clamp
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Wood blows, Hammer and chisel
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Close the lid, Tool box, open
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Vibratory grinding machine
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Bulldozer passing by
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Bulldozer rides through the woods, crackling
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Construction of the road, clean the old
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Hammer hammering a nail into a tree
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Grinder tool and pipe
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Wood lathe
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Floor polisher
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Excavator starts up, expects to be jammed
★★★★★