Electric surface grinding machine:
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Screwdriver
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Electric hand grinder
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Construction, end of pouring, cement loading
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Knocking a hammer indoors with an echo
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Construction, concrete processing
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Tin snips
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Bulldozer, Construction, digging
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Jamming, Bobcat loader approaching
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Floor polisher
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Blows on concrete, Hammer and chisel
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Building tape
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Build, shutdown, compressor, start, run
★★★★★