Weld can tube air duct and tank making machine metal sheet 1.payment terms T/T L/C West ... ISO9001:2000 Weld can tube air duct and tank making machine metal sheetUsed to weld can, tube, air duct and tank ... machines,iron workers,hydraulic press brake and shears punching machines, roll bending machine and many more. Sturdily constructed to perfection, our hydraulic ...