The indentation pattern of the c-type corrugation in the following illustration shows the common contact side wear of the corrugating roll. Multi layer waterproof pen bag, waterproof pen bag, waterproof portable tutoring bag, waterproof multifunctional tutoring bag Dongguan Jinying Handbags Co.,Ltd , https://www.jinyingbag.com
Operating side Center Drive side Cause Action Corrugated roller has exceeded the service life Replacing the corrugating roller