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The History of Steel, The low investment cost involved in setting up EAF mills allowed them to compete with the major US producers like US Steel Corp. and Bethlehem Steel, especially in carbon steels, or long products. Because EAFs can produce steel from scrap, or cold ferrous, feed, less energy per unit of production is needed.How to Control Dust at a Construction Site,  · Tillage Tillage is a control measure performed with chisel type plows on exposed soils. Tillage shall begin on the windward side of the site. Tillage is only applicable to flat areas. Roughening the soil can reduce soil losses by approximately 80% in some situations.Marble grinding mill for powder production, Crusher is an ideal large-scale ore crushing equipment, it can crush large marble to the user specified particle size requirements, so that users can better grind marble. This equipment is widely used in many fields because of its large crushing rate, uniform crushing particle size and low energy consumption.Buying brick making machinery,  · Investing in a brick and block making machine is a smart decision for any business that is looking to get off the ground quickly by producing high-quality products with a low-cost. For instance the Interlock Block Making Machine from Sadhana in India which is a novel concept in the present construction industry.Crusher,  · A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust.Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated.Particle accelerator,  · A particle accelerator is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies, and to contain them in well-defined beams.[1] Large accelerators are used for basic research in particle physics. The largest accelerator currently operating is the Large Hadron Collider (LHC) near Geneva ....

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Incandescent light bulb,  · In 1761, Ebenezer Kinnersley demonstrated heating a wire to incandescence. In 1802, Humphry Davy used what he described as "a battery of immense size", consisting of 2,000 cells housed in the basement of the Royal Institution of Great Britain, to create an incandescent light by passing the current through a thin strip of platinum, chosen because the metal had an extremely high melting point.Olive oil extraction,  · Olive oil extraction is the process of extracting the oil present in olive drupes, known as olive oil. Olive oil is produced in the mesocarp cells, and stored in a particular type of vacuole called a lipo vacuole, i.e., every cell contains a tiny olive oil droplet. Olive oil extraction is the process of separating the oil from the other fruit ...New type Air Conditioner Radiator Recycling Line for sale,  · Air Conditioner Radiator Recycling Line Main Features 1.The machine has a sturdy structure. 2.The blade material used by the machine is good. 3.A large amount of aluminum was separated in the ...Textile industry in Bangladesh,  · The textile and clothing industries provide the single source of growth in Bangladesh's rapidly developing economy. Exports of textiles and garments are the principal source of foreign exchange earnings. By 2002 exports of textiles, clothing, and ready-made garments (RMG) accounted for 77% of Bangladesh's total merchandise exports. ...