- piercing stub mandrel
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• конически бутылочная игла• конически ступенчатая игла
Англо-русский словарь терминов металлургии и сварки. 2011.
Англо-русский словарь терминов металлургии и сварки. 2011.
Marking blue — Marking blue, layout stain or Prussian blue is a dye used in metalworking to aid in marking out rough parts for further machining. It is sometimes called Dykem (after a popular brand). It is used to stain or paint a metal object with a very thin… … Wikipedia
Moonstone (gemstone) — Moonstone General Category Feldspar variety Identification … Wikipedia