Industrial Magnetic V Block 1) High quality consistency 2) Excellent anti-corrosion property ... F)28AH-35AH220°C (428°F)Magnet ShapeDisc, Cylinder, Block, Ring, Countersunk, Segment, Trapezoid, Irregular shapes and ... CoatingNi-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more.Technology ... GreyExcellent Against Humidity& Salt SprayNi+Cu+EpoxyZn+Epoxy