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| Roller |
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1-1: needle roller with G2, G3 precision grade
1-2. cylindrical roller with II, III, precision grade
1-3. all kinds of overall convex, relieved end, variant-curvature roller
Diameter of the above is from ￠1 mm to￠50mm, length from 2mm to 60mm
Ball
Diameter from ￠0.500 mm to ￠50.00mm
Material: chrome steel, stainless steel, ceramic
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