- File hardness
- File hardness.(Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО "Профессионал", НПО "Мир и семья"; Санкт-Петербург, 2003 г.)
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File hardness
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Mohs scale of mineral hardness — The Mohs scale of mineral hardness characterizes the scratch resistance of various minerals through the ability of a harder material to scratch a softer material. It was created in 1812 by the German geologist and mineralogist Friedrich Mohs and… … Wikipedia
определяемая напильником — File hardness Твердость, определяемая напильником. Твердость, определяемая с помощью стального напильника стандартной твердости при условии, что материал, который не может быть надрезан напильником такой же твердый или тверже, чем напильник.… … Словарь металлургических терминов
Pencil — This article is about the handwriting instrument. For other uses, see Pencil (disambiguation). HB graphite pencils A pencil is a … Wikipedia
Titanium — This article is about the chemical element. For other uses, see Titanium (disambiguation). scandium ← titanium → vanadium … Wikipedia
List of fictional elements, materials, isotopes and atomic particles — This list contains chemical elements, materials, isotopes or (sub)atomic particle that exist primarily in works of fiction (usually fantasy or science fiction). No actual periodic elements end in ite , though many minerals have names with this… … Wikipedia
Gold — This article is about the metal. For the color, see Gold (color). For other uses, see Gold (disambiguation). platinum ← gold → mercury … Wikipedia
Hard water — is the type of water that has high mineral content (in contrast with soft water ). Hard water minerals primarily consist of calcium (Ca2+), and magnesium (Mg2+) metal cations, and sometimes other dissolved compounds such as bicarbonates and… … Wikipedia
Katana construction — was the labour intensive bladesmithing process developed in Japan for forging katana and other Japanese blades. Katana and wakizashi were often forged with different profiles, different blade thicknesses, and varying amounts of grind. Wakizashi… … Wikipedia
Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) … Wikipedia
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium
