50 pcs 4.0mm silicon nitride ceramic balls SI3N4 Ball G5


$16.46 $23.51

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  • Estimated Delivery:Apr 09 - Apr 16

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Material: Silicone Nitride (Si3N4). 2, high wear resistance: silicon nitride ball processing needs at least 150-200 hours. 3, corrosion resistance: silicon nitride ball, almost no chemical reaction with any substance.

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