6.4mmsteel ball for curtain 1.material:AISI1010-1015 2.size:6.35mm,4.76mm.5.55mm,4.5mm,7.938mm,9. ... .938mm,9.525mmGradeG1000Quality standardISO9001:2008Featureshining surface with lowest priceApplicationmainly used for housing,decorative and curtainPackage1) 25/kg export cartons2) Steel drums ... hesitate to contact us.your quotation and cooperation are welcome! 6.4mm carbon steel ball for curtain rope