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Article
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1980
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Elsevier Science
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English
β 125 KB
Vacuum News Number 250 (also 250 defined by the Vickers diamond-pyramid are used by manufacturers of compressors, gearboxes, diesel hardness test). These include mild steel, stainless steel, brass, and marine engines, forklift trucks, tractors, vehicles, axles, mine copper and aluminium. Btitish, Am