Balls from silicon - molybdenum steel 55SM5FA
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Ball from from silicon - molybdenum steel 55SM5FA Steel 55SM5FA, steel 55SM5FA-VD and steel 55SM5FA-ShD possess unique properties: high hardness and wear resistance. For these properties balls from this brand of steel gained big distribution as rotation bodies for support of boring chisels and turbo-drills. On the operational qualities balls from steel 55SM5FA are often interchanged with spheres from steel 95Х18.