danger overhead, crane load falling hazard risk sign, cargo icon signage, black triangle over yellow, large macro closeup

advice alert attached attention beware black box careful cargo caution closeup construction crane damage danger dangerous failure fall falling hazard hoisting hook icon industrial industry info information informing isolated label large lifting load machinery macro manufacturing moving notice over overhead pictogram protect protection risk rope safety security sign signage signal sling sticker suspended symbol technology transportation triangle triangular unsafe warning weight yellow zone