20pcs/lot 12.303/12.7/15.081mm ceramic balls Silicon Nitride balls for bearing/pump/linear slider/valvs balls/bike G5 Si3n4

20pcs/lot 12.303/12.7/15.081mm ceramic balls Silicon Nitride balls for bearing/pump/linear slider/valvs balls/bike G5 Si3n4
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sku: 1005004009725167
$52.39
Shipping from: China
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