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2. Rotary piercing - Wikipedia

   en.wikipedia.org/wiki/Rotary_piercing

   Rotary piercing is a hot working metalworking process for forming thick-walled seamless tubing. There are two types: the Mannesmann process, invented in the 1880s, and the Stiefel process, developed two decades later. [1]

3. Pipe (fluid conveyance) - Wikipedia

   en.wikipedia.org/wiki/Pipe_(fluid_conveyance)

   Historically, seamless pipe was regarded as withstanding pressure better than other types, and was often more available than welded pipe. Advances since the 1970s, in materials, process control, and non-destructive testing, allow correctly specified welded pipe to replace seamless in many applications.

4. Tube bending - Wikipedia

   en.wikipedia.org/wiki/Tube_bending

   The process of tube bending involves using mechanical force to push stock material pipe or tubing against a die, forcing the pipe or tube to conform to the shape of the die. Often, stock tubing is held firmly in place while the end is rotated and rolled around the die.

5. Tube drawing - Wikipedia

   en.wikipedia.org/wiki/Tube_drawing

   Tube drawing is a process to size a tube by shrinking a large diameter tube into a smaller one, by drawing the tube through a die. This process produces high-quality tubing with precise dimensions, good surface finish, and the added strength of cold working. [1] For this reason this process is established for many materials, mainly metalworking ...

6. Tube (fluid conveyance) - Wikipedia

   en.wikipedia.org/wiki/Tube_(fluid_conveyance)

   A tube, or tubing, is a long hollow cylinder used for moving fluids (liquids or gases) or to protect electrical or optical cables and wires. The terms " pipe " and "tube" are almost interchangeable, although minor distinctions exist — generally, a tube has tighter engineering requirements than a pipe.

7. Mannesmann - Wikipedia

   en.wikipedia.org/wiki/Mannesmann

   Share of the Deutsch-Oesterreichischen Mannesmannröhren-Werke AG, issued 14. November 1890 [1] Mannesmann air protection grille - City Hall in Dresden - around 1940. In 1886, the German brothers Reinhard [] (1856–1922) and Max Mannesmann (1857–1915) received the world's first patent for their invention of a process for rolling seamless steel pipes (Mannesmann process).

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   www.aol.com/lifestyle/12-best-eyebrow-growth...

   Sephora/Chelsea Candelario. This brow enhancing formula is infused with a blend of vitamins, antioxidants and amino acids to help you grow fuller, bolder looking brows in six to eight weeks, with ...

9. Copper tubing - Wikipedia

   en.wikipedia.org/wiki/Copper_tubing

   Soft (or ductile) copper tubing can be bent easily to travel around obstacles in the path of the tubing. While the work hardening of the drawing process used to size the tubing makes the copper hard or rigid, it is carefully annealed to make it soft again; it is, therefore, more expensive to produce than non-annealed, rigid copper tubing.