... 2.size:6.35mm,4.76mm.5.55mm,7.938mm,9.525mm,10MM,11MM 3.grade:G500/G1000 Name10mm low carbon steel ... made in ChinaSize6.35mm,4.76mm.5.55mm,7.938mm,9.525mmGradeG1000Quality standardISO9001:2008Featureshining surface with lowest priceApplicationmainly used for housing ... contact us.your quotation and cooperation are welcome! hot seller 10mm AISI1010 steel ball