When welding two metal or plastic pipes, there is often a need to pre-cut them to the desired angle for proper docking. How to mark this angle on the tube?
It turns out that the easiest way to make using paper strips, wrapping her pipe, or piece of paper on which the protractor is marked to the desired angle of cut, place the pipe and the cutting line is carried out with pencil or Scriber the line of the future joint.
Recommend to read
BA3-21213 NIVA
In 2002 the famous Russian jeep "Niva" was 25 years old. The model VAZ-2121 became the first independent development of the Volga automobile plant. The design Department under the...
“PYGMY”, “SIREN”, “TRITON” MADE IN THE USSR
In 1921 - 1939 in Leningrad acted Special technical Bureau for military inventions (Sptecbureau), it was headed by engineer V. I. Bekauri. In 1934 in a 1st division Sptecbureau was...