hi all, had a inquire about factory floors and do we clean them, i hate to turn down work but i have only done a werehouse floor, which i assume is the same thing, sweep through and put machine over am i wrong. i have no idea how i would price this up as my ins would go up i would have to hire a machine i know there would be metal filings on the floor any help would be greatly apperached before i ring back and say yes or no or pass it on to someone