An industrial method for producing line-shaped metal decorative pipes, formed from cylindrical pipes, consisting of a forming tool built on temperate steel, with a Conica borehole in the center, engraved as follows: Reverse triangle, from whom to get the tube.

摘要

Method for industrial production of decorative metal tubes longitudinally striated, Steel, Bronze, Brass, Nickel Silver or Aluminum formed from Cylindrical Tubes, the tubes are postoformado, being drawn into a form Tool, built in steel TemperateIn whose Center has a Conical Drill which is carved the striatum Conversely that acquires the tube.