... 9001:2008/SGS test report/ROHS report Stainless steel ball Name: Stainless steel ballsMaterial: AISI304,316,420C,440CSize: 0.8mm- ... bearings).OUR MAIN PRODUCTS:Stainless steel ball:AISI302,304,316,420,4440CBearing steel balls:AISIE52100Carbon steel balls:AISI1010,1015,1045,1085Steel ... G120,G80,G50,G40,G25,G18,G16,G14,G12,G10Any further Information,Plz contact us! 8mm High Quality Stainless steel ball