Material: Bearing Steel (Gcr15). Φ1mm - 10mm Bearing Steel Balls Spheres Smooth Ball. Bicycle parts. 8mm 8.1mm 8.5mm 8.731mm 9mm 9.525mm 10mm. 1mm 1.5mm 2mm 2.5mm 3mm 3.175mm 3.5mm 3.969mm 4mm. Machine tools.
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