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GB/T 20057-2006/ISO 12043:1995
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Rolling bearings-Single-row cylindrical roller bearings-
Chamfer dimensions for loose rib and non-rib sides
(ISO 12043:1995,IDT)
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GB_T 20057-2006 滚动轴承 单列圆柱滚子轴承 平挡圈和套圈无挡边端倒角尺寸.pdf