Solid 304 Stainless Steel Ball Bearings 20 25 30 35 40 45 50.8 75 76.2 85mm. 【Model】: 304 Stainless Steel Ball Bearings. 【Material】: 304 Stainless Steel. 【Characteristics】: The typical representative of 304 stainless steel austenitic steel is generally non-magnetic, but it will be magnetized after passing through a photosphere, with weak magnetic HRC<26.
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