... after-sale service Corrugated roof tile roll forming machine Technology parameter of corrugated roll forming machine1.Main power ... Material of the roller:45#forge steel,machined with numerical control ,polished and coated with chrome,surface with 0, ... diameter:400mmOuter diameter:600mmEquipment include:uncoiler,roll forming machine,hrdraulic station,hydraulic shear,PLC cabinet,output tableFlow ...