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Yuncheng Dong sheng Steel Balls Co., Ltd , We are professional steel ball manufactory
1. Material: AISI1010/1015/1045/1085 carbon steel
2. HRC: 55-65
3. Model: 6mm
4. Color: Argentine
5. Grade: G200
Mainly used for simple bearing, caster wheel, bicycle and so on
7mm Carbon steel ball
