... small remanence 2.No power supply is needed Permanent Magnent Crane 1. Brief introduction 'Magent Steel King',say neodymium,iron ... handle,small remanence,and light deadweight. It is widely used in lifting and transferring of ferrous metal sheet,round steel ... other rigging fittings .This company produces the sling is widely used in water conservancy construction, the petroleum chemical industry, mining ...