...PDF Duct Flange Roll Former, PDF3 Flange Roll Former, PDF -3 integral duct flange Machines for the Manufacture of Air-condition Rectangular Ducts Fittings Duplex PDF3 flange duct Roll Former is designed to form the PDF3 flange 20mm or 30mm Profile on both Sides. The others are optional, such as 20mm PDF3 Flange profile. The hardened steel roller tooling carries intermediate rolls to allow forming...
