... magnet ItemsMarking Area(mm2)InstructionNCQ/C-135-85135*85With rubber plate, to mark on heavy and big work piecesNCQ/C2-135-85135 ... -85With electro-magnet,marking on base plate, pillar of the carNCQ ... control machine, directly mak on the body,base plate,pillar and engineApplicable scopeMotor industry:mark serial number, manufactural date, name, brand, ...