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Polishing and Grinding Tungsten Carbide Ball for Oil Well Pump Sucker Valve Shot Precision Bearings

Polishing and Grinding Tungsten Carbide Ball for Oil Well Pump Sucker Valve Shot Precision Bearings
Product DescriptionThe material is Tungsten carbideWe mainly produce size Ø0.3 to ø100mm ball.the unground ball is...

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