Seam Automatic Welding Machine Flanging machines For Axial Flow Fans Diameter: 0-3800mm / customized Axial Fan, Centrifugal Fan/Metal Spinning, Flanging, Forming, Punching Rolling & Welding Production Line Diameter 400-1500; Thickness 1-4mm /Customized Carbon Steel, Stainless Steel/Feeding - Rolling - Welding - Unloading Air Duct Automatic Rolling Production Line Diameter 300-1500; Thickness 1-3mm /CS,SUS,GA Customized/ Feeding-Leveling-Laser-Rolling-Welding -Flanging-Unloading Auto-Seam Welding Machines Diameter: 150-1600mm/ Welding length 1500mm /custom TIG Welding, Gas Shielded Welding, laser Welding/Panasonic, Magmet, Customized Lift-Type Seam Auto Welding Solution Diameter: 400-3000mm/ Welding length 3000mm /custom TIG Welding, Gas Shielded Welding, laser Welding/Panasonic, Magmet,