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International Steel balls standards
author:
TDB: Basic Diameter Tolerance (μm)
VDWL: Variation Of ball lot diameter (μm)
VDWS: Variation Of ball diameter (μm)
△Sph: Deviation from Spherical form (μm)
Ra: Surface Roughness (μm)
*International Standard ISO 3290 2001
*American Standard AFBMA 10 1989
*Japanese Standard JIS B 1501 1988
*German Standard DIN 5401 2002
*The custom-made is available.
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