... price 3.Design by COPRA@ software Foamed Roller shutter door forming machine 1.Size:37mm,42mm,55mm,77mm,90mm,98mm ... min3. Forming Steps: 12-14 Stations.4. Material of Roller: 45# Steel, Plated Chrome5. Material of Shaft: 45 ... Cutting Knife: Cr12Mov, Quench HRC58-629. The whole machine is controlled by industry computer-PLC. PLC--Panasonic, ... : www.ch-lw.com Foamed Roller shutter door forming machine