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Fluid coupling,  · A fluid coupling or hydraulic coupling is a hydrodynamic or 'hydrokinetic' device used to transmit rotating mechanical power.[1] It has been used in automobile transmissions as an alternative to a mechanical clutch. It also has widespread application in marine and industrial machine drives, where variable speed operation and controlled start ...Hydraulic accumulator,  · A hydraulic accumulator is a pressure storage reservoir in which a non-compressible hydraulic fluid is held under pressure that is applied by an external source of mechanical energy. The external source can be an engine, a spring, a raised weight, or a compressed gas.[note 1] An accumulator enables a hydraulic system to cope with extremes of ...mini crusher for gravel piron ore in philippines,  · manufacturer of sayaji jaw crusher parts. thickener machine piron ore. gold crushing process from open pit. track cone crusher for sale in bc. Learn More Crusher Batu Out Put 2 Mm S D 3 Mm.

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List of ASTM International standards,  · This is a list of ASTM International standards.Standard designations usually consist of a letter prefix and a sequentially assigned number. This may optionally be followed by a dash and the last two digits of the year in which the standard was adopted. Prefix letters