ASME B30-20 pdf download Below-the-Hook Lifting Devices Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings indicafor, internal control funcfion: an indicator whichshows that the permanent magnet material in one typeof electrically controlled permanent magnet has beenpositioned internally to provide full magnetic attractionlond (capacity), rafed: the maximum load that the liftingmagnet is designated to handle by the manufacturer.lond...