LITIO 2.0 is a sheet metal add-on for ZwCAD, that calculates and draws the flat sheet development of ducts, rectangle-to-round transitions, cylinders, cones, pipe intersections, connections, Ys, elbows, etc.It is very easy to use and very versatile. It is ideal for the sheet metal-processing industry: for tanks, vessels, hoppers, cyclones, dust extraction, HVAC, ducts, conveying systems, silos, piping, etc.Litio 2.0 runs within ZwCAD as an add-on, pluggin program.