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Stainless Steel Ball
201
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440
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Perfect quality certification system
Possesser perfect instrument to desect the quality of the products and strict means of administra_ tionand supervision.By its hith-grade and advanced instruments it carrieson a series of inspectio_ ns of steel ball's roundness, vibration, gauge, surface rounghness and hardness, Vickersdiamond ha_ dness and Rockwell hardness,Through these all-rounded and detailde inspections,Our steelballs have won powferfull guarantee and havebeen trusted and praised by the broad masses of customers.
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