Material grades: N35 to N52, N44SH, N40UH, N38EH and N30AH Oriented dimension thickness: 70 to 80mm (maximum) Surface treatment: zinc, nickel, Ni + Cu + Ni, epoxy, parylene, zinc + parylene and Ni+ Cu + Ni + epoxy Magnetization: axially, 2, 4, multiple pole, diametric or radically Maximum working temperature: 80 to 230°C Tolerance: Standard: ±0.05mm Strict tolerance: ±0.015mm Packing: Plastic or wooden spacer insert between magnets Vacuum plastic bag Small carton box Protective foam Waterproof polybag (flux shield pieces for airworthy) Cartons Pallets