Creases, occurring perpendicu-lar to the slit edge of a coil and which are repetitive in nature, with severity decreasing as the distance increases in the coil from the original source. This defect is visible on both faces, exactly opposite.
Creases, occurring perpendicu-lar to the slit edge of a coil and which are repetitive in nature, with severity decreasing as the distance increases in the coil from the original source.This defect is visible on both faces, exactly opposite.