... 316L stainless steel balls 1)100% original 2)High hardness 3)good wear resistance and no breakage 4)No spots Quick ... : stainless steel ballMaterial: AISI304,316,316L,420,440,200,202MDiameter: 3.969mmGrade: G10-G1000Certificate: ISO9001:2008 SGS Packaging & Delivery Packaging Detail ... } ); } )(); AISI 316 316L stainless steel balls stainless steel ball weight 3.969mm