... grade 45 steel6.surface of roller coated with chrome 0.05mm thickness7.type of cutting:hydraulic cutting8.line speed ... ,MitsubishiB.Technical process:Manual decoiler---feed with guide---roll forming---press step---cut with fixed length---output with tableC. ... EquipmentManual decoiler,main roll forming machine,press module,hydraulic cutting device,hydraulic station,PLC ...