미네랄, 금속 & 직물
An object that is surrounded by a magnetic field and that has the property, either natural or induced, of attracting iron or steel.
A piece of magnetic material that retains its magnetism after it is removed from a magnetic field.
Pipes made of steel material.
A generally hard, strong, durable, malleable alloy of iron and carbon, usually containing between 0.2 and 1.5 percent carbon, often with other constituents such as manganese, chromium, nickel, molybdenum, copper, tungsten, cobalt, or silicon, depending on the desired alloy properties, and widely used as a structural material.
A substance, such as stone, sand, salt, or coal, that is extracted or obtained from the ground or water and used in economic activities.
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A mineral, Al2Si2O5(OH)4, that is the principal constituent of kaolin.
An alloy of iron and manganese used in the production of carbon steel.
An alloy of iron and silicon used in the production of carbon steel.
A broad, thin, usually rectangular mass or piece of magnet.
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Sand having a very high percentage of silicon dioxide; a source of silicon.
A strong, low-density, highly corrosion-resistant, lustrous white metallic element that occurs widely in igneous rocks and is used to alloy aircraft metals for low weight, strength, and high-temperature stability.
The conversion of the energy of the sun´s radiation to useful work.
A major conduction material used in the electric smelting industry.
A photovoltaic module which is an assembly of solar cells used to generate electricity.
The steel that is color coated.
A material made from extremely fine fibers of glass.
Aluminium that has been rolled into a sheet having a thickness between foil and plate.
An object that is surrounded by a magnetic field and that has the property, either natural or induced, of attracting iron or steel.
A silver-white metallic element occurring worldwide, usually mixed with other metals such as iridium, osmium, or nickel. It is ductile and malleable, does not oxidize in air, and is used as a catalyst and in electrical components, jewelry, dentistry, and electroplating. Atomic number 78; atomic weight 195.08; melting point 1,772¡ãC; boiling point 3,827¡ãC; specific gravity 21.45; valence 2, 3, 4.
Any of several metals, including gold and platinum, that have high economic value.
An electrode for an electrical application.
A black, porous, carbonaceous material, 85 to 98 percent carbon, produced by the destructive distillation of wood and used as a fuel, filter, and absorbent for an Eastern smoking pipe designed with a long tube passing through an urn of water that cools the smoke as it is drawn through.
A mineral, essentially CaF2, that is often fluorescent in ultraviolet light and occurs in light green, blue, yellow, brown, and colorless forms. Also called fluor, fluorspar.
An upright bar at the meeting of two faces of a polygonal window, bay window, or bow window.
An elongated, threadlike structure that is made of steel.
A type of metal products.
A metal alloy whose major component is iron, with carbon content between 0.02% and 1.7% by weight.
A very hard mineral powder composed of silica, SiO2, found worldwide in many different types of rocks, including sandstone and granite.
A very hard mineral powder composed of silica, SiO2, found worldwide in many different types of rocks, including sandstone and granite.
Materials which are magnetic.
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A broad, thin, usually rectangular mass or piece of mica.
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A kind of aluminum products.
The principal ore of aluminum, composed mainly of hydrous aluminum oxides and aluminum hydroxides.
A kind of magnetic material.
A short, thick piece of aluminum.
Tungsten Wire has excellent strength at high temperature and exceptional resistance to corrosion with good electrical and heat conducting properties.
A binary compound consisting of carbon and a more electropositive element, especially calcium.
A kind of metal products.
A silvery-white, ductile metallic element, the most abundant in the earth´s crust but found only in combination, chiefly in bauxite.
A grayish-black crystalline compound, CaC2, obtained by heating pulverized limestone or quicklime with carbon and used to generate acetylene gas, as a dehydrating agent, and in the manufacture of graphite and hydrogen.
Any of a group of chemically and physically related aluminum silicate minerals, common in igneous and metamorphic rocks, characteristically splitting into flexible sheets used in insulation and electrical equipment.
