VICTAULIC NO. 50, 4 X 3GROOVED CONCENTRIC REDUCERTrazado de Plantillas para Tubos is a translation of Pipe Template Layout by Thomas Frankland. There are three Thomas Frankland books left in print: Pipe Fitter's and Pipe Welder's Handbook, Pipe Trades Pocket Manual, and Pipe Template Layout. Two of these are available in Spanish as well. Pipe Trades Pocket Manual was translated into Manual de Tuberia Comercial and Pipe Template Layout was ... Reductor Concentrico Home ,If you are interested in our products or need more information, please leave us a message,we will send you it as soon as possible.