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스틸 볼 표준
스틸 볼 표준GradeNominal diameterLimit deviationsBall diameterRoundnessSurfaceroughnessLot d
GradeBall diameter variationDeviation from spherical formSurface roughnessLot
GradeBall diameter variationDeviation from spherical formSurface roughness Lot d
Size（mm in）1000 pcs（kg）Per kilogram（ number）Size（mm in）1000 pcs（kg）Per kil
CountryChinaU.S.AGermanyJapanFranceEnglandItalyRussiaStandardGBAISIDINSUSNFBSUNI
스틸 볼 직경Size 진동 그룹Vibrationlevels정밀도 등급GradeG20G16G10 G5 G3Z1Z2Z3초과Over도To평균값Aver