... 840 color steel tile roll forming machine1. Specification Size: ... high grade 45# steel ,plated hard chrome on the surfaceComputer adopt PLC control: DeltaFrequency converter: Delta 3. equipment Manual decoiler, main roll forming machine ... , hydraulic cutting device,hydraulic station, PLC computer control, electric locking machine No. NameUnitQty 1Decoilerset1 2Main machine for roll ...